For the past two days, every time i eat, i am gastric afterwards. cramps and burning sensation. why is this?

Gastritis: Sounds like you are having gastritis, but could also be a problem with your gallbladder. How long after eating does the pain start? How long does the pain last? Do you get pain anywhere else, like in your back? You can try taking an acid reducing medication, like pepcid or zantac (ranitidine) or even omeprazole. Cut down on fatty foods, spicy foods, caffeine. If this isn't helping, then see your doc.