yes it is possible that you could go hypo after Graves. What were your tpo antibodies at the beginning, did they do that test? Did the doc test your tsi to see if it's 80 percent or less, if it's still really up there you might go back hyper after a while of stopping meds. tsi needs to be low to be in remission, as far as I've heard. Mine started out at 109... after a year and a half on meds, don't know what it is now, will have it checked in June by my primary, endo says it's not necessary, he's into tsh mostly. Mine is fine now at 1.084 with my free t-4 at .99. Do you know your levels? My doc isn't talking about taking me off med though,he mentioned RAI today when I went, I'm like.. I don't think so! He didn't mention it again, but I know he will. How in the world did you get out of them talking you into RAI??