Lately I have been having odd problems. I used to have amazing will power and be able to keep in shape really well.. But out of nowhere i start to get these overwhelming cravings and I have this small stomach that won't seem to go away, which is odd because i can normally lose weight fairly quickly if I try. On top of that, I've been having diarrhea for the past few days and no matter what i eat it doesn't change. I have also had these insane mood swings. I'm not sexually active, so it's not because I'm pregnant, and it is not close to my time of the month so it isn't my period. Help?