As you know I am still a member of your previous MSN Bipolar Disorder Board. A member posted something I have never heard happening before regarding the misdiagnosis of the bipolar disorder. She found that her real problem was her thyroid. She posted under "General" 6-12 ( tired - please read this, all Thyroid Diagnosis). It peeked my interest as you can imagine. How common is this occurrence - or is it? Or is this just another misconception?