Tha's why I'm confused, labs don't look hyper and you don't have hyper symptoms,and you WERE being treated for hypo, not hyper. I never heard of a doctor switching someone from Synthroid to Tap, it's usually used sometimes together for block and replace method. I would just stop the Synthroid and lab again in 6-8 weeks to see if you go one way or the other,and test what midwest said after that.You're on such a low dose of Synthroid,it seems you almost don't need it,I think the levels are fine.,but if anything more hypo.I think someone who knows about scans could help you too. Sorry....he's probably just going on tsh like most of them.