I have been not feeling well for about three weeks. I have severe pain in my stomach and right side that seems to go through to my back. Almost every time I eat I get nauseated to the point where I usually vomit. I have also noticed that I have lost weight in this time, about ten pounds or more. I thought I had a stomach bug, but now I'm not sure anymore. I've had kidney stones in the past and thought maybe that was what I was experiencing. I am probably going to make an appointment, but I'm not sure what to expect. This is pretty scary for me.