Loose stools going on 2 weeks

Alright here is the deal, I have been having loose stools going on just about 2 weeks, i haven been trying to eat comforting foods or things that sound good. I am nauseated. I feel almost as if I am pregnant but I have my period, and am on birth control. I have already had my appendix and gallbladder out so I know it is not that, what else could it be. I have like 3-6 loose stools a day.Please someone help me figure out what is going on.