Telling viral (stomach flu) from bacterial (food poisoning) stomach bugs is tricky, but look for timing: bacterial often hits fast (hours after eating contaminated food, shorter duration), while viral is slower (1-3 days after exposure, lasts longer). Bacterial bugs might have blood in diarrhea or high fever, signaling potential severity needing a doctor; viral usually has watery diarrhea. A stool sample for lab testing is the only definitive way to know, but managing symptoms (hydration) is key for both.
Both can cause abdominal symptoms. Bacterial and viral infections have similar symptoms, such as nausea, vomiting, and diarrhea, but a stool test may distinguish between them.
If you have a fever, worsening abdominal pain or abdominal pain that starts localizing to one area of the abdomen, bloody diarrhea, frequent vomiting and unable to hold down any fluids at all, dizziness/lightheadedness (may signal dehydration), fast heart rate (may also signal dehydration), or symptoms that persist for ...
But high fever and bloody diarrhea are more common with bacterial gastroenteritis. If untreated, the condition can lead to very bad dehydration, nerve problems, kidney failure, and even death. The symptoms of bacterial gastroenteritis may look like other health problems. Always talk with your doctor for a diagnosis.
Six common signs of norovirus include sudden vomiting, watery diarrhea, stomach pain/cramps, nausea, headache, and muscle aches, often appearing 12-48 hours after exposure and lasting 1-3 days, leading to potential dehydration.
Causes of abdominal pain and chills. Many conditions and infections may cause stomach pain and chills. These include the common cold, gastroenteritis, UTIs, and prostatitis.
Contact a healthcare provider if you notice any unusual or red flag symptoms, such as: Inability to keep fluids down, signs of dehydration. Symptoms last longer than five days. Fever lasts more than three days or is higher than 104 degrees Fahrenheit (40 degrees Celsius).
It's important to note that if diarrhea is caused by bacteria, your body needs to get rid of the bacteria first by letting diarrhea run its course. If they're taken too soon, anti-diarrheal medication can make symptoms worse and keep you from clearing the infection.
Symptoms of Gastrointestinal Bleeding
Some common and noticeable symptoms include bloody or black stools, vomit blood, or vomit that looks like coffee grounds. Less apparent symptoms may include weakness, shortness of breath, abdominal pain, unexplained weight loss, or general fatigue.
Immediate action required: Call 999 or go to A&E if you or your child: vomit blood or have vomit that looks like ground coffee. have green vomit (adults) have yellow-green or green vomit (children)
The three main red flags for abdominal pain needing urgent care are severe, unrelenting pain (especially with fever/rigidity), vomiting blood or black material, and blood in the stool (bright red or tarry black), all signaling potential serious issues like appendicitis, obstruction, or bleeding that require immediate medical evaluation. Other major flags include inability to pass gas/stool, jaundice, significant weight loss, or pain radiating to the back.
Key Symptoms of Gastric Vertigo
Feeling like the room is spinning. Stomach bloating or gas. Nausea or vomiting. Sudden weakness after meals.
Viral infections often develop gradually, such as a cold that starts with a scratchy throat and progresses to a cough and congestion. Bacterial infections, however, tend to appear suddenly and with more intensity. For example, strep throat can cause a severe sore throat and high fever that comes on quickly.
The 4 C's of preventing food poisoning are Clean, Separate, Cook, and Chill, fundamental food safety practices to stop germs from spreading and multiplying, ensuring food remains safe to eat by washing hands/surfaces, keeping raw foods apart, heating food to the right temperature, and refrigerating promptly.
How do doctors diagnose viral gastroenteritis? Doctors often diagnose viral gastroenteritis based on your symptoms. If your symptoms are mild and last only a short time, you typically won't need tests. In some cases, a medical history, a physical exam, and stool tests can help diagnose viral gastroenteritis.
Lifestyle and home remedies
Do not take loperamide if you:
Yogurt containing probiotics can be helpful for diarrhea because it: Restores gut bacteria lost during diarrhea: Diarrhea can wipe out the balance of good bacteria in your digestive system. Yogurt that contains live probiotics can help restore this balance by adding beneficial bacteria back into your gut.
Try sucking on ice chips or taking small sips of water often. You might also try drinking clear soda, clear broths or noncaffeinated sports drinks. In some cases you can try oral rehydration solutions. Drink plenty of liquid every day, taking small, frequent sips.
Signs and symptoms of norovirus infection may start suddenly and include:
Causes and treatments for watery diarrhea (liquid poop) Watery diarrhea can result from infections, medications, or chronic conditions. Treatments may include drinking plenty of water, avoiding foods that make it worse, and taking medications to treat diarrhea or an underlying condition.
You should not ignore sudden, severe, or worsening stomach pain, especially if accompanied by fever, persistent vomiting (especially blood), bloody/black stools, inability to pass gas or stool, shortness of breath, dizziness, chest/neck/shoulder pain, or if you're pregnant and experiencing pain/bleeding, as these can signal serious issues like appendicitis, bowel obstruction, ectopic pregnancy, or aneurysms, requiring immediate emergency care. Don't ignore pain that lasts over a few days, doesn't improve, or is accompanied by jaundice or significant swelling.
Getting the flu shot does not prevent you from getting the stomach flu, but it does prevent you from getting influenza. “Stomach flu symptoms include stomach pain, nausea, vomiting and diarrhea,” Miller says. “A low-grade fever, chills and muscle aches aren't uncommon to experience as well.
COVID-19-related diarrhea and nausea
"Nausea, vomiting and diarrhea are less common symptoms of COVID-19, but when they do occur, they tend to be some of the first symptoms you will experience," says Barajas.