Stomach Pains Like Severe Cramps. They Come On And Increase

stomach pains like severe cramps. They come on and increase with pain through the entire cramp. some cramps last longer & are more painful. swelling and pain between breast &stomach. frequent burps. went to emergency. they started an iv with pain meds. it knocks me out. usually when i get up after laying in emergency for sveral hours i feel better. this time the pain continues. tired. when pains begin I start vomiting. want to take a pain pill but know it will make me sick as theres nothing on my stomach & the idea of food makes me s[ck,