How to knew if you have of food poisoning and what to do if you're sick with it

Centers or Disease Control and Prevention (CDC)

You can get sick with food poisoning after swallowing certain germs, like Salmonella or E. coli. Your symptoms may vary, depending on the germ you swallowed. Symptoms can range from mild to serious and can last for a few hours or several days.

Symptoms

The most common symptoms of food poisoning include diarrhea, stomach pain or cramps, nausea, vomiting, and fever.

Signs of severe food poisoning include bloody diarrhea, diarrhea that lasts more than 3 days, fever over 102°F, vomiting so often that you cannot keep liquids down, and signs of dehydration (not having enough water in your body). Signs of dehydration include not urinating (peeing) much, a dry mouth and throat, and/or feeling dizzy when standing up. See a doctor if you have any these symptoms.

Also see your doctor if you are pregnant and have a fever and other flu-like symptoms. Some mild infections can cause problems with pregnancy.

Complications

Most people have mild illnesses, but some infections spread by food are serious or even life-threatening. Some people may need to be hospitalized, and some illnesses lead to other health problems, including:
       Meningitis
       Kidney damage
       Hemolytic uremic syndrome (HUS), which can cause kidney failure
       Arthritis
       Brain and nerve damage

For some people, these health problems can last for weeks or months after recovering from a foodborne illness. For others, they never go away.

Symptoms, sources, and germs

Some germs can make you sick within a few hours after you swallow them. Others may take a few days to make you sick. This table provides details about the symptoms caused by different germs, when they usually start, and common sources for those germs. Search the table for symptoms you are having.

Germs - Symptoms - When Symptoms Start - Common Sources:

• Staphylococcus aureus (Staph food poisoning)
Nausea, vomiting, stomach cramps, diarrhea
30 minutes to 8 hours
Foods that are not cooked after handling, such as sliced meats, puddings, pastries, and sandwiches

• Vibrio
Watery diarrhea, nausea, stomach cramps, vomiting, fever, chills
Within 24 hours
Raw or undercooked shellfish, particularly oysters

• Clostridium perfringens
Diarrhea, stomach cramps that last for less than 24 hours. Vomiting and fever are not common.
6 to 24 hours
Meat, poultry, gravies, and other foods cooked in large batches and held at an unsafe temperature

• Salmonella
Diarrhea (can be bloody), fever, stomach cramps, vomiting
6 hours to 6 days
Raw or undercooked chicken, turkey, and other meats; eggs; unpasteurized (raw) milk and juice; raw fruits and vegetables; many animals, including backyard poultry, reptiles and amphibians, and small mammals

• Norovirus
Diarrhea, vomiting, nausea, stomach pain. Fever, headache, and body aches are also possible
12 to 48 hours
Leafy greens, fresh fruits, shellfish (such as raw oysters), contaminated water, infected people, touching surfaces that have the virus on them

• Clostridium botulinum (Botulism)
Difficulty swallowing, muscle weakness, double or blurred vision, drooping eyelids, slurred speech, and difficulty moving eyes
Symptoms start in the head and move down as the illness gets worse
18 to 36 hours
Improperly canned or fermented foods, homemade homemade alcohol (pruno)

• Campylobacter
Diarrhea (often bloody), fever, stomach cramps
2 to 5 days
Raw or undercooked poultry, raw (unpasteurized) milk, contaminated water, pets (including cats and dogs)

• E. coli (Escherichia coli)
Severe stomach cramps, diarrhea (often bloody), vomiting. Long-term effects: Around 5–10% of people diagnosed with E. coli develop a life-threatening health problem called hemolytic uremic syndrome.
3 to 4 days
Raw or undercooked ground beef, raw (unpasteurized) milk and juice, raw vegetables (such as lettuce), raw sprouts, and contaminated water

• Cyclospora
Watery diarrhea, loss of appetite, weight loss, stomach cramps, bloating, increased gas, nausea, fatigue
1 week
Raw fruits or vegetables and herbs

• Listeria (invasive illness)
Fever and flu-like symptoms (such as muscle aches and fatigue), headache, stiff neck, confusion, loss of balance, and seizures. People who are pregnant: Infections during pregnancy can lead to miscarriage, stillbirth, premature delivery, or life-threatening infection of the newborn. Call the doctor right away if you have a fever and feel more tired and achy than usual.
2 weeks
Queso fresco and other soft cheeses, raw sprouts, melons, hot dogs, pâtés, deli meats, smoked fish, and raw (unpasteurized) milk.