Please go and see your doctor about the pain in your stomach. Anything that hurts that badly needs to be checked out, even without the problems you have already.

The first thing that occurred to me was appendicitis - I've had that and it hurts more than I can effectively describe without swearing comprehensively and involved throwing up anything I tried to eat as well, but if yours stopped, it presumably can't be that, which is a good thing - but it could still be a grumbling appendix, which isn't.