I've had this gnawing pain in my upper abdomen all night, at first I thought I was hungry so I ate some pizza and that only made it worse. It's kept me up all night, I have to work at 10, I really don't know what to do... I called my mom because she's usually pretty good with this kinda shit and she thinks it might be an ulcer, which sounds pretty extreme, anyone else think they might know what it is?