2 days ago I had horrible pain in my upper abdomen, along with severe headache. Shortly after I started vomiting and it lasted for at least 6 hours, about every 1/2 hr, until I was just coughing up bile. About 6 hours after that, I started with diarreah and that has lasted for about 36 hours. Everytime I eat anything, or drink a lot of water, I have to run to the bathroom. Me belching is fowl smelling, my headache has eased up but I ache all over. How long before I decide to see a doctor? I feel really tired and weak but overall, a little better. I am still chilling from time to time as well and do not know if I have been running a fever. I am still eating rice, bananas, and soup but even that makes me cramp some.