Hello, I have a very strange question. Every once in a while (once every two months maybe), I get these burps that taste like vomit. The first two times I got it, I vomited, and it went away, but now I just get very nautious. I thought I figured out it had to do with the food I ate, so I was more careful to eat nothing that tasted like it (pretty much anything barbequed). Today I woke up and had those burps. I am confused why, as it has been about six months since I last had them, and I hadn't eaten anything that tasted like it. The weird thing is, normally if I go to sleep, when I wake up it is gone, but this time it wasn't. Is this a common thing? My family has a history of very strong stomaches, though my father had irratable bowel sydrome, and I am wondering if that is what this is, but the only other symptoms of that are, I occasionally get cramps when I have them. I have asked my doctor, and he thought that it was mental (i used to make myself sick worrying), but the medicine he prescribed hadn't helped much.