| | Underactive to overactive?
Hi, I was diagnosed at hypothyroid about a year ago, with a tsh of 20. I have been taking 75mcgs. So I went back to doctors and get my blood taken again, and get the phone call that now my thyroid is overactive, and my meds have to be changed. I think she said something as low as .5 mcgs, but I didn't think they went that low. Does this sound right? Thanks in advance.