Posted 8/5/2012 10:24 AM (GMT -8)
From my understanding, your TSH can fluctuate. Mine was originally at 4.2, then a week later at 3.04 and my freeT4 at .8. While my results were 'within' range, my doctor utilized my symptoms for diagnosis and began treatment for hypo. Not all doctors do this, though, and rely solely on lab results.
I hope that answers your one question. I have only recently been diagnosed, so I will leave it to the other 'veterans' to answer the other questions with their experience and knowledge.