I think we should always trust our "gut" feelings, and pursue whatever treatment/testing you feel might help pinpoint the problem. Just be careful not to appear to be not believing your physicians, as they don't always take this well! (from a nurse who has seen this happen time after time) It is our bodies, after all, and we know them better than anyone else! Sometimes we are wrong, and it is what the doctor thinks, but I think most good doc's will listen if you explain why you feel the way you do. Good luck!!