Xanex withdrawl symptoms?

I COULD BE HAVING WITHDRAWL FROM THE PILL ITAKE CALLED XANEX!! I haven't took it in about the last two weeks and I usually take it faithfully! And I don't think it's constipation !my poop isn't hard...but maybe had about two or three headaches out of this experience ,stomach constantly rumbles and growls,A LITTLE NAUSEOUS,not much.and everything else I already said.and diarrhea and fowl gas!!!