Hi Laura,
Thank you for the reply. I really was confused about this, because I was under the assumption that to have thyroid symptoms you must have abnormal TSH levels. Mine fall all within normal range with the exception of the TPO test. I have had a multitude of tests to rule out other issues (ie. sigmoidoscopy, endoscopy, gastric emptying test, abdominal ultrasound, transvaginal ultrasound, abdominal/pelvic cat scan, numerous blood tests).