Bloating, acid reflux (hearburn), burping?
If yes, have a breath test for H. pylori bacteria infection of stomach. It's easy non-invasive test.
I have been having bouts of nausea and/or vomiting during bowel movements which usually happens in the morning but has also happened in the evening as well. In addition, occasionally in the evening the vomiting precedes the bowel movement. The only consistent factor is that I have eaten recently, it does not seem to matter what I have ate or drank. I also have stomach pain/cramps prior to these episodes.
I had my gall bladder removed two years ago due to gallstones and the same doctor suggested I had Irritable Bowel Syndrome but the vomiting contradicts that diagnosis. I had an upper GI done a year ago and besides some minor irritation it was normal.
When there's no gallbladder, bile constantly flows into your intestine, and it may leak back into the stomach - bile reflux. Green vomits maybe?
No, I vomit whatever I have eaten, until my stomach is empty, however, I do on occasion vomit stomach acid in the middle of the night but I think this is due to eating something I know will cause heartburn/reflux.
Well, the first thought is gastritis. If you feel bloated, nauseated, you burp and have hearburn (or anything from this), it may be due to H. pylori.