I really hope I help someone with this post. I just saw an endocronolgist who told me that
1. Levothyroxine (generic) was NOT as good as Synthroid a brand med.
( I have suffered for years with all symptoms related to to low thyroid; depression, exhaustion, hair loss, dry skin, puffy eyes, etc.)
2. My current dosage was too low.
My various psychiatrists have been negligent in checking my thyroid level, and the specialist I just saw said my TSH was well over 3, and he wanted to bring it down to about a 1. My former shrink just told me my thyroid levels were just fine, after looking at the same blood work. I was first diagnosed in 1996, and I know for a fact that my thyroid levels were low way before that, but that the GP was ill-informed about the particulars of this problem.
My point is please see a specialist you can trust for thyroid and endo problems, as other docs haven't a clue what they are talking about. If your thyroid levels are too low, you haven't a chance at a "normal" life.