Had severe diarrhea for 24 hours with one occasion of sickness. 5 days later i have loose stools and stomach cramps with gas.

Gastroenteritis: This may be a viral gastrointestinal tract infection which usually resolves in a few days with rest, good fluid intake,avoiding harsh roughage in your diet, and taking kaopectate as needed to control diarrhea. Another possibility is simply an intolerance to something you ate or food poisoning. If symptoms persist or worsen, see your physician.