Long COVID or long-haul COVID is a series of health problems persisting or developing after an initial COVID-19 infection. Symptoms can last weeks, months or years and are often debilitating.

Many of the symptoms that have been documented in people with long COVID are similar to those that occur during the initial bout of illness. These symptoms include: Fever, Coughing, Difficulty breathing, or shortness of breath, Fatigue, Brain fog (difficulty thinking or concentrating), Joint or muscle pain, Headache, Diarrhea, Skin rashes and Loss of taste or smell.

New symptoms that were not part of the initial bout of COVID may develop for the first time in the weeks or months after the initial infection. these can include: Mood changes, Chest pain, Heart palpitations, Stomach pain, Sleep problems, Dizziness or lightheadedness upon standing, A feeling of pins-and-needles in the body, Exhaustion or other symptoms after physical or mental activities (known as post-exertional malaise) and Changes in menstrual cycles.

Irritable bowel syndrome, or IBS, is a group of symptoms that affect your digestive system. It’s a common but uncomfortable gastrointestinal disorder. People with IBS get excessive gas, abdominal pain and cramps.

IBS is a type of functional gastrointestinal (GI) disorder. These conditions, also called disorders of the gut-brain interaction, have to do with problems in how your gut and brain work together.These problems cause your digestive tract to be very sensitive. They also change how your bowel muscles contract. The result is abdominal pain, diarrhea and constipation.

Often, people with IBS have normal bowel movements some days and abnormal ones on other days. The type of IBS you have depends on the abnormal bowel movements you experience:

IBS with constipation (IBS-C): Most of your poop is hard and lumpy.

IBS with diarrhea (IBS-D): Most of your poop is loose and watery.

IBS with mixed bowel habits (IBS-M): You have both hard and lumpy bowel movements and loose and watery movements on the same day.

Symptoms of IBS include:

Abdominal pain or cramps, usually in the lower half of the abdomen.

Bloating.

Bowel movements that are harder or looser than usual.

Diarrhea, constipation or alternating between the two.

Excess gas.

Mucus in your poop (may look whitish).

Palmoplantar pustulosis is an autoimmune disorder marked by the appearance of fluid-filled pustules or blisters on the hands and feet.
Autoimmune disorders cause the immune system to attack healthy cells. In the case of palmoplantar pustulosis, the immune system attacks the healthy skin on the hands and feet.
The symptoms of palmoplantar pustulosis often vary. The most common symptom for people with palmoplantar pustulosis is sores that develop on the hands and feet.

Some other common symptoms a person may experience include:

small blisters on the hands or feet, often with yellow pus
cracked skin
tender, red skin
itchiness
scaly skin
pain
dry skin
thick skin
For most people, symptoms start with their skin becoming tender and red on their hands and palms. The red areas eventually form pustules that may appear as patches on the skin. The pustules are often filled with a white or yellow liquid.

It is typical for the pustules to come and go. As they dry, the skin typically turns brown and dries, leading to cracks forming.Common risk factors include:

smoking
history of smoking
family history of psoriasis
presence of another autoimmune disorder
family history of palmoplantar pustulosis

Sjogren’s is a chronic disorder of the immune system. It is an autoimmune condition, meaning that healthy tissues and cells are
mistakenly attacked by the immune system

It happens when white blood cells infiltrate saliva glands, tear glands, and other exocrine tissues, leading to decrease in tear and saliva
production. This can lead to dryness in the mouth, eyes, skin, nose,
upper respiratory tract, and vagina.

Fibromyalgia is a disorder characterized by widespread musculoskeletal pain accompanied by fatigue, sleep, memory and mood issues. Researchers believe that fibromyalgia amplifies painful sensations by affecting the way your brain and spinal cord process painful and nonpainful signals.

The primary symptoms of fibromyalgia include:

Fatigue

Cognitive difficulties

Widespread pain

Insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not
be able to get back to sleep. You may still feel tired when you wake up.
Insomnia can sap not only your energy level and mood but also your
health, work performance and quality of life.

Insomnia symptoms may include:

Difficulty falling asleep at night

Waking up during the night

Waking up too early

Not feeling well-rested after a night's sleep

Daytime tiredness or sleepiness

Irritability, depression or anxiety

Difficulty paying attention, focusing on tasks or remembering

Increased errors or accidents

Ongoing worries about sleep

Prostate cancer is cancer that occurs in the prostate. The prostate is a small walnut-shaped gland in males that produces the seminal fluid that
nourishes and transports sperm.

Prostate cancer is one of the most common types of cancer. Many prostate cancers grow slowly and are confined to the prostate gland, where they
may not cause serious harm. However, while some types of prostate cancer
grow slowly and may need minimal or even no treatment, other types are
aggressive and can spread quickly.

Prostate cancer may cause no signs or symptoms in its early stages.

Prostate cancer that's more advanced may cause signs and symptoms such as:

Trouble urinating

Decreased force in the stream of urine

Blood in the urine

Blood in the semen

Bone pain

Losing weight without trying

Erectile dysfunction

A migraine is a headache that can cause severe throbbing pain or a pulsing sensation, usually on one side of the head. It's often
accompanied by nausea, vomiting, and extreme sensitivity to light and
sound. Migraine attacks can last for hours to days, and the pain can be
so severe that it interferes with your daily activities.

Symptoms

Migraines, which affect children and teenagers as well as adults, can progress through four stages: prodrome, aura, attack
and post-drome. Not everyone who has migraines goes through all stages.

Prodrome

One or two days before a migraine, you might notice subtle changes that warn of an upcoming migraine, including:

Constipation

Mood changes, from depression to euphoria

Food cravings

Neck stiffness

Increased urination

Fluid retention

Frequent yawning

Aura

For some people, an aura might occur before or during migraines. Auras are reversible symptoms of the nervous
system. They're usually visual but can also include other disturbances.
Each symptom usually begins gradually, builds up over several minutes
and can last up to 60 minutes.

Examples of migraine auras include:

Visual phenomena, such as seeing various shapes, bright spots or flashes of light

Vision loss

Pins and needles sensations in an arm or leg

Weakness or numbness in the face or one side of the body

Difficulty speaking

Attack

A migraine usually lasts from 4 to 72 hours if untreated. How often migraines occur varies from person to
person. Migraines might occur rarely or strike several times a month.

During a migraine, you might have:

Pain usually on one side of your head, but often on both sides

Pain that throbs or pulses

Sensitivity to light, sound, and sometimes smell and touch

Nausea and vomiting

Post-drome

After a migraine attack, you might feel drained, confused and washed out for up to a day. Some people
report feeling elated. Sudden head movement might bring on the pain
again briefly.

Hashimoto's disease is an autoimmune disorder affecting the thyroid gland. The thyroid is a butterfly-shaped gland located at the base of
the neck just below the Adam's apple. The thyroid produces hormones that
help regulate many functions in the body.

An autoimmune disorder is an illness caused by the immune system attacking healthy tissues. In Hashimoto's disease, immune-system cells
lead to the death of the thyroid's hormone-producing cells. The disease
usually results in a decline in hormone production (hypothyroidism

Hashimoto's disease progresses slowly over the years. You may not notice signs or symptoms of the disease. Eventually, the decline in
thyroid hormone production can result in any of the following:

Fatigue and sluggishness

Increased sensitivity to cold

Increased sleepiness

Dry skin

Constipation

Muscle weakness

Muscle aches, tenderness and stiffness

Joint pain and stiffness

Irregular or excessive menstrual bleeding

Depression

Problems with memory or concentration

Swelling of the thyroid (goiter)

A puffy face

Brittle nails

Hair loss

Enlargement of the tongue
           

Burning mouth syndrome is the medical term for ongoing or recurring burning in the mouth without an obvious cause. You may feel this burning
on your tongue, gums, lips, inside of your cheeks, roof of your mouth
or large areas of your whole mouth. The feeling of burning can be
severe, as if you injured your mouth with a very hot drink.

Symptoms of burning mouth syndrome may include:

A burning or scalding feeling that most commonly affects your tongue, but also may affect your lips, gums, roof of your mouth, throat
or whole mouth.

A feeling of dry mouth with increased thirst.

Taste changes in your mouth, such as a bitter or metallic taste.

Loss of taste.

Tingling, stinging or numbness in your mouth.

The cause of burning mouth syndrome may be primary or secondary.

Primary burning mouth syndrome

When the cause can't be found, the condition is called primary or idiopathic burning mouth syndrome. Some research suggests that primary burning mouth syndrome is related to problems with the nerves involved with taste and pain.

Secondary burning mouth syndrome

Sometimes burning mouth syndrome is caused by an underlying medical condition. In these cases, it's called secondary burning mouth syndrome.

Underlying problems that may be linked to secondary burning mouth syndrome include:

Dry mouth, which can be caused by some medicines, health problems, problems with the glands that make saliva or the side effects of cancer treatment.

Other oral conditions, such as a fungal infection of the mouth called oral thrush, an inflammatory condition called oral lichen planus or a condition called geographic tongue that gives the tongue a maplike appearance.

Not getting enough nutrients, such as a lack of iron, zinc, folate (vitamin B-9), thiamin (vitamin B-1), riboflavin (vitamin B-2), pyridoxine (vitamin B-6) and cobalamin (vitamin B-12).

Allergies or reactions to foods, food flavorings, other food additives, fragrances or dyes, dental materials, or mouth care products.

Reflux of stomach acid that enters your mouth from your stomach, also called gastroesophageal reflux disease (GERD).

Certain medicines, especially high blood pressure medicines.

Oral habits, such as pushing your tongue against your teeth, biting the tip of your tongue, and grinding or clenching your teeth.

Endocrine disorders, such as diabetes or an underactive thyroid known as hypothyroidism.

A very irritated mouth, which may result from brushing your tongue too much or too hard, using abrasive toothpastes, overusing mouthwashes, or having too many acidic foods or drinks. Dentures that don't fit well may cause irritation that can make symptoms worse.

Psychological issues, such as anxiety, depression or stress.

Dystonia is a disorder that affects the way the body moves. It causes the muscles to contract, which makes them move involuntarily or get stuck
in an abnormal position. Dystonia can affect the entire body or a
certain part, and the movements can sometimes cause pain.

Symptoms may start slowly—you might notice that your handwriting is deteriorating. Sometimes you may get cramps in the feet or, more
noticeably, you may lose control over a foot and find that it contracts
or drags along.

Other symptoms of dystonia can include:

1. Involuntary and rapid blinking that you can't stop
2. A sudden tightening or turning of the neck to one side, particularly when you’re feeling fatigued or stressed
3. Difficulty speaking
4. A tremor in your voice
5. Symptoms that worsen with tiredness, stress, or lots of physical activity

The symptoms of dystonia may stay the same or worsen over time.

Chronic fatigue syndrome (CFS) is characterized by profound tiredness, regardless of bed rest. Its symptoms may worsen with physical or mental activity. CFS can happen suddenly and last for years. The condition affects more females than males.

Symptoms of CFS often mimic the flu. The following are the most common symptoms of CFS. However, each person may experience symptoms differently. Symptoms may include:

Sensitivity to light, Headache, Tender lymph nodes, Fatigue and weakness, Muscle and joint pain, Inability to concentrate, Insomnia, Forgetfulness, Mood swings, Confusion, Low-grade fever and Depression