- Allergic reaction
Allergic reaction causes sneezing, runny nose and hives and can lead to anaphylaxis, a whole body reaction.
- Generalized anxiety disorder
Generalized anxiety disorder is a condition in which a person has nearly constant anxiety.
- Panic attack
When someone has a panic attack, that person feels a sudden, intense fear that can't be controlled.
- Drug allergy
A drug allergy is an allergic reaction to a medication and can cause a rapid heartbeat and difficulty breathing.
- Anaphylactic shock
Anaphylactic shock is a sudden severe allergic reaction marked by breathing trouble, a tight throat, and more.
- Medication reaction or side-effect
Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more.
- Acute stress reaction
Acute stress reaction symptoms include shortness of breath, anxiety, nervousness, sense of doom and more.
- Thyroid cancer
Thyroid cancer is cancer of the thyroid gland and can cause a cough, hoarseness, a lump in the neck, and more.
- Thyroid nodules
Thyroid nodules usually don't cause symptoms, but can cause a visible lump, neck pain, hoarseness, and more.
- Benign lipoma
Lipomas are a harmless collection of fatty cells that form a round or oval, rubbery lump under the skin.
- Epidermal (sebaceous) cyst
Epidermal (sebaceous) cysts are painless, moveable lumps that form beneath the skin's surface.
- Swollen glands
Located throughout the body, lymph nodes often swell and become tender when fighting an infection.
- Hyperthyroidism
Hyperparathyroidism can cause fatigue and weakness, increased thirst, impaired thinking, and bone fractures.
- Supraventricular tachycardia
Supraventricular tachycardia is fast heart rhythm starting in one of the upper chambers of the heart.
- Abscess
A skin abscess, or boil, is a swollen, painful, red and warm lump of skin that may rupture and drain pus.
- Throat cancer
Throat cancer can cause symptoms including difficulty swallowing, hoarseness, and chronic cough.
