Stomach bug?

For about 3-4 days now I've been extremely nauseous to where I could vomit but I have emetophobia and do everything I can to make that not happen...I also have on and off stomach pain, smaller appetite, and some diarrhea and gas. I had a fever on day 2 as well. Is there a bug going around? Does this sound like one, if so what can I do for it? I've tried everything from pepto, tums, ginger ale, saltines, water, a few teas, mints. I feel really miserable, I don't think Im pregnant as I had my period a week ago and I dont think I ate anything bad because no one else in my household is sick. Please help a girl out.