Answer:
Allergy
Brief Description = occur when your immune system reacts to a specific substance or a food that doesn't cause a reaction in most people
Sign and Symptoms = you will feel uneasy of your body whether its itching/vomiting/sneezing/etc.
Cause(s) = can affect your airways, sinuses and nasal passages, skin, and digestive system (depends on what allergies you have)
Asthma
Brief description = is a condition in which your airways narrow and swell and may produce extra mucus
Sign and symptoms = wheezing/breathing faster/a fast heartbeat/exhaustion
Cause(s) = uneasy to breathe/unable to do physical activities
heart disease
brief description = this occurs when the heart has several heart conditions
sign and symptoms = shortness of breath/chest pain, chest tightness, chest pressure and chest discomfort/etc.
cause(s) = heart attack may occur which will lead to blood of the heart will stop flowing
Explanation:
i will stop here since i am busy , my apologies i hope it helps