- Food poisoning
Food poisoning can cause abdominal pain, diarrhea, nausea, vomiting, fever, chills, and weakness.
- Irritable bowel syndrome
Irritable bowel syndrome is a common condition that causes painful spasms and cramping in the large intestine.
- Traveler's diarrhea
Traveler's diarrhea causes watery diarrhea and cramps, sometimes with a low-grade fever.
- Gastroenteritis
Gastroenteritis is inflammation of the stomach and intestine that causes diarrhea and vomiting.
- Medication reaction or side-effect
Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more.
- Viral gastroenteritis
Gastroenteritis (stomach flu) is a viral condition that causes diarrhea and vomiting.
- Hyperthyroidism
Hyperparathyroidism can cause fatigue and weakness, increased thirst, impaired thinking, and bone fractures.
- Sleep deprivation
Sleep deprivation occurs when the lack of restful sleep is severe enough to compromise basic body functions.
- Antibiotic use
Antibiotics can cause stomach pain, diarrhea, nausea, vomiting, itching, rashes and dizziness.
- Dehydration (Children)
Dehydration, or not getting enough fluid, causes dry and sticky mouth, tearless crying, and more in children.
- Campylobacter
Campylobacter is an intestinal infection causing abdominal pain and cramping, nausea, diarrhea, and vomiting.
- Heart rhythm disorder
Some heart rhythm disorders can cause a fluttering in the chest, shortness of breath, chest pain or dizziness.
- Diabetes, type 2
Diabetes can make you feel hungry, tired, or thirsty; you may urinate more than normal and have blurry vision.
- Lactose intolerance
Lactose intolerance, or the inability to digest lactose, leads to gas, bloating, and other symptoms.
- Dehydration (Adult)
Dehydration, or not getting enough fluid, causes low blood pressure, weakness, dizziness, fatigue, and nausea.
- Inflammatory bowel disease
Inflammatory bowel disease causes swelling and symptoms such as cramping, chronic diarrhea, and bleeding.
- Drug overdose
A drug overdose can be fatal and causes sleepiness, confusion, coma, vomiting, and other symptoms.
- Sickle cell disease
Sickle cell disease symptoms include repeated infections, yellow skin, fatigue, dizziness, pain, and more.
- Thyroid storm
A thyroid storm, dangerously high levels of thyroid hormone, causes fever, racing heartbeat, sweating, and more
- Vitamin B12 deficiency
Vitamin B12 deficiency symptoms include fatigue, pale skin, weakness, sleepiness, numbness, weakness, and more.
- Anemia
Anemia, a lack of red blood cells, can cause fatigue, pale skin, weakness, dizziness, headache and more.
- Benzodiazepine abuse
Benzodiazepines are prescription medications that cause drowsiness, dizziness, blurred vision, and more.
- Iron poisoning
Iron poisoning causes abdominal pain, vomiting, diarrhea, lethargy, and dehydration.
- Gastrointestinal bleeding
The symptoms of gastrointestinal bleeding include black or bloody stool or vomit, dizziness, and cramping.
- Giardiasis
Giardiasis is an infection of the small intestine causing diarrhea, gas, bloating, nausea and stomach cramps.
- Lung cancer (non small cell)
Non-small cell lung cancer is the most common type of lung cancer and can cause a cough, chest pain, and more.
- Amebiasis
Amebiasis is an intestinal parasitic infection causing diarrhea, cramps, gas, fever, and fatigue.
- Scurvy (vitamin C deficiency)
Scurvy is a form of vitamin C deficiency leading to anemia, nosebleeds, loose teeth, bleeding gums, and more.
- Histoplasmosis
Histoplasmosis is a fungal infection of the lungs causing muscle aches, fever, chest pain, cough, and more.
- Hypothyroidism (adult)
Hypothyroidism your body functions slow down, making you gain weight and feel tired all the time.
- Lung cancer (small cell)
Small cell lung cancer is the least common type of lung cancer and can cause a cough, chest pain, and more.
- Thalassemia
Thalassemia is a rare group of genetic blood disorders effecting red blood cells and leading to anemia.
- Tick bite
A tick-related illness may cause a rash that expands out from the site of the bite, fever, chills, and more.
- Aortic regurgitation
Aortic regurgitation, when the aortic valve doesn't close completely, can cause severe heart symptoms.
- Low blood pressure (hypotension)
Low blood pressure, or hypotension, can make you feel lightheaded and dizzy
- Tuberculosis
Tuberculosis usually infects the lungs, causing a bad cough with blood, chest pain, fever, chills, and fatigue.
- Mononucleosis
Mononucleosis is a viral infection causing extreme fatigue, sore throat, fever, rash, muscle aches, and more.
- Pre-leukemia (myelodysplastic syndrome)
Myelodysplastic syndromes are diseases that affect the bone marrow and blood, causing anemia and tiredness.
- Congestive heart failure
People with congestive heart failure can have shortness of breath, fatigue, irregular heartbeat and more.
- Ulcerative colitis
Ulcerative colitis causes swelling in the large intestine and can lead to cramping, diarrhea, and more.
- Diverticulosis
Diverticulosis is a condition of the colon and causes pain, cramping, infection, bleeding, and other symptoms.
- Emphysema
Emphysema is a chronic lung condition that causes shortness of breath, a chronic cough, wheezing, and more.
- Heat exhaustion
Heat exhaustion causes intense thirst, heavy sweating, pale, cool, and moist skin, muscle cramps, and more.
- Antibiotic-associated diarrhea
Antibiotic-associated diarrhea is frequent, watery bowel movements that happen after taking antibiotics.
- Atrial fibrillation
Atrial fibrillation is a heart condition that causes heart palpitations, confusion, dizziness and more.
- Celiac disease
Celiac disease, which is an intestinal reaction to gluten, can cause gas, diarrhea, bloating, and weight loss.
- Colon cancer
Colon cancer is often asymptomatic, but it can cause constipation, bowel obstruction, bloody stool and more.
- Crohn's disease
Crohn's disease is a digestive condition that causes swelling, cramping, diarrhea, and nutritional problems.
- Cystic fibrosis
Cystic fibrosis is an inherited disease that causes the body to produce abnormally thick and sticky mucus.
- Diabetes, type 1
Diabetes can make you feel hungry, tired, or thirsty; you may urinate more than normal and have blurry vision.
- Pulmonary hypertension
Pulmonary hypertension can cause shortness of breath, a fast heart rate, or lightheadedness.
- Rheumatoid arthritis
Rheumatoid arthritis is an autoimmune disease that causes pain, swelling, and joint damage.
- Rotavirus
Rotavirus is an inflammation of the stomach and intestines leading to diarrhea and vomiting.
- Salmonella
Salmonella are a type of bacteria that can infect the body and cause diarrhea, cramps, and fever.
- Shigellosis
Shigellosis is irritation of the stomach and intestine and causes bloody diarrhea, abdominal pain, and fever.
- Stool holding (encopresis)
Young children with encopresis soil their underwear or clothing with unintentional bowel movements.
- Stroke
A stroke occurs when blood and oxygen to the brain are cut off, and causes numbness, confusion, and more.
- Transient ischemic attack (mini-stroke)
Transient ischemic attacks cause headache, numbness, tingling, or weakness in the face, arm, or leg, and more.
- Chemical burns
A chemical burn can cause symptoms ranging from burning and blisters to pain and shortness of breath.
- Toxic shock syndrome
Toxic shock syndrome is a serious bacterial infection and causes fever, low blood pressure, a rash, and more.
- Brain tumor
Primary brain tumors are often benign but can cause seizures, ongoing headaches, or loss of coordination.
- Brain infection
A brain infection is inflammation of the brain or spinal cord and can cause nausea, fever, seizures and more.
- Radiation sickness
Radiation sickness is caused by a high dose of radiation, and causes vomiting, diarrhea, hair loss, and more.
- Lead poisoning
Lead poisoning causes sudden pain on either side of the lower back, urinary issues, nausea, fever, and chills.
- Pseudohypoparathyroidism
Pseudohypoparathyroidism is a rare inherited condition that can lead to cramps, muscle spasms, and more.
- Ricin poisoning
Ricin is a dangerous poison in castor beans, and causes trouble breathing, nausea, fever and sweating.
- Hypopituitarism
Hypopituitarism is a rare disorder of the pituitary glands, which can cause many different symptoms.
- Cyanide poisoning
The symptoms of cyanide poisoning include headache, weakness, confusion, nausea, and seizures.
- Plague
Plague is a rare but deadly bacterial infection causing fever, vomiting, seizures, organ failure, and more.
- Typhoid fever
Typhoid fever is a life-threatening illness and causes fever, general aches and pains, headache, and weakness.
- Mesenteric lymphadenitis
Mesenteric lymphadenitis is an inflammation of abdominal lymph nodes causing pain, diarrhea, fever, and more.
- West nile virus
West Nile virus is an infection spread by mosquitoes, and can cause diarrhea, fever, abdominal pain, and more.
- Cholera
Cholera is a bacterial infection that can cause diarrhea, nausea, excessive thirst, dry skin and vomiting.
- Carcinoid syndrome
Carcinoid syndrome is a group of symptoms such as flushing, wheezing, and diarrhea that may develop in people who have carcinoid cancer.
