High Fever and Gastrointestinal Symptoms: Is It Stomach Flu?

Fever persisting for two consecutive days accompanied by vomiting and diarrhea?

From approximately July 22 to July 25, I experienced up to three episodes of diarrhea per day, which is not normal for me.
From July 24 to July 25, I had a slightly elevated body temperature, felt lethargic, and had a loss of appetite.
Whenever I ate, I felt nauseous but did not actually vomit.
On July 25, my temperature was 37.5°C, I had diarrhea three times, and I vomited twice.
I only ate two meals that day.
Could this be a gastrointestinal flu?

Jia, 20~29 year old female. Ask Date: 2020/07/25

Dr. Wu Zongying reply Family Medicine

Based on your symptoms, it appears to be acute gastroenteritis.
During the summer, the hot weather can lead to food spoilage, and sometimes the ingredients used in dining out may not be fresh, which can trigger gastroenteritis.
If it is a mild case, it usually resolves within a few days; however, during this period, you should maintain a light diet and reduce your food intake, while also replenishing fluids and electrolytes (such as through juice).
If symptoms persist without improvement, it is advisable to seek medical treatment.
Wishing you good health.

Reply Date: 2020/07/25

More Info

Based on the symptoms you've described, it seems you are experiencing a combination of gastrointestinal distress and fever, which can indeed be indicative of a viral gastroenteritis, commonly referred to as "stomach flu." However, it's important to clarify that "stomach flu" is a colloquial term and does not refer to influenza, which primarily affects the respiratory system. Instead, viral gastroenteritis is an inflammation of the stomach and intestines caused by various viruses, such as norovirus or rotavirus.

Your symptoms of high fever (37.5°C), lethargy, loss of appetite, and gastrointestinal issues like diarrhea and nausea align with those commonly seen in viral gastroenteritis. The fact that you have experienced multiple episodes of diarrhea and vomiting, along with a fever, suggests that your body is responding to an infection, which is typical in cases of gastroenteritis.

It's also worth noting that the onset of symptoms following a period of eating, especially if you consumed any questionable food or beverages, could indicate that your gastrointestinal system is reacting to an infectious agent. In such cases, the body often tries to expel the irritant through vomiting and diarrhea, which can lead to dehydration if not managed properly.

Given your symptoms, here are a few considerations:
1. Hydration: It's crucial to stay hydrated, especially since diarrhea and vomiting can lead to significant fluid loss. Consider drinking clear fluids, such as water, broth, or oral rehydration solutions, to replenish lost fluids and electrolytes.

2. Diet: When you feel ready to eat, start with bland foods that are easy on the stomach, such as bananas, rice, applesauce, and toast (often referred to as the BRAT diet). Avoid dairy, fatty, or spicy foods until your symptoms improve.

3. Monitoring Symptoms: Keep an eye on your symptoms. If your fever persists, or if you experience severe abdominal pain, blood in your stool, or signs of dehydration (such as dizziness, dry mouth, or decreased urination), it is essential to seek medical attention promptly.

4. Duration of Symptoms: Viral gastroenteritis typically resolves within a few days, but if your symptoms last longer than a week or worsen, it may be necessary to consult a healthcare provider for further evaluation. They may perform tests to rule out other potential causes of your symptoms, such as bacterial infections or parasitic infections.

5. Prevention: In the future, practice good hygiene, such as washing your hands frequently and ensuring that food is cooked thoroughly, to reduce the risk of gastroenteritis.

In conclusion, while your symptoms are consistent with viral gastroenteritis, it is essential to monitor your condition closely and seek medical advice if your symptoms do not improve or worsen. Early intervention can help manage symptoms effectively and prevent complications.

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