So basically earlier tonight I had some ham thats been opened over a week. (ur supposed to throw it away a week after opening) and it tasted fine but i'm worried anyway. it's been about 7 hours now and i feel some tummy cramping but nothing else really, I know the onset is 1-8 hours but I'm just really scared since the main symptom is explosive v*... it's irrational but i can't help it. My stomach does hurt kinda bad though but, I also have IBs so I never really know. Its 4 AM and I should sleep soon but I'm afraid I'll wake up and be sick or something.

Please help :\