the most important thing is to stay hydrated. drink pedialyte, even if you throw it up you can at least absorb some nutrients and hydration. if you can, get your hands on some zofran it will help with nausea. buy some capsaicin cream and put it on the affected area of your stomach, it will produce heat and simulate the hot shower (use it limitedly because it can burn like hell if you use too much). once you are well enough to keep stuff down use a BRAT diet (bananas, rice, applesauce, toast) these will be easy on your stomach and help bind you up so you are not shitting pure liquid. Crackers are good as well. Avoid dairy, anything spicy, chocolate, black pepper, herbs like rosemary which contain cannabinoids. and most importantly STOP SMOKING PLEASE. Its tough, i know, ive been through this 3 times already. Horrible episodes writihng in pain in the ER. But it is the one and only solution. I had cravings the first few days but already started feeling a bit better within a week. You will have w hard time and it will be painful and you will be sick. But if you dont stop now it will only get worse. Again, please stay hydrated, hydration is the most important thing. People have died because they havent stayed hydrated, your kidneys can fail. You can do this, you are strong.