Based on the blood tests and symptoms they did all those various types of scans and saw nothing.

my last scan was abdominal mri in mid October. The nausea started about three weeks after that.
The gas and burping has been a issue for at least six months.
I really don't know what to do next. I have had so many scans that I am worried about more radiation especially since I had to have radiation treatment for a meningioma.