I have had vomiting i and diarrhea intermittently for almost a month, it seems like i am normal for a day and then it's back.

Check for giardia: Intermittent symptoms of vomiting and diarrhea say to me that you need to be checked for parasites.

See Dr: What are you waiting for? You obviously need professional attention. Your PCP will probably send you to a gastroenterologist. When you go, bring all meds, vitamins, supplements to review with the Dr. You need to begin with a diagnosis before you can rationally treat this.