Mary,
Goodness almost anything can happen. If the RAI dose wasn’t big enough you could
still be hyperactive. I went from hypo (actually Hashimotos)
(gained enough weight to be 250 lbs at 5’3″) to Graves (down to 120 lbs)
so don’t pray for hypo and being being calm. I thought being hypo was
actually worse than Graves. Took RAI and one of my docs said “by the way,
you WILL gain back all the weight.” I’ve gained 30 lbs in 2 yrs and work
out 7 hrs/week. Too low too long and you can have LOTS of complications
(Diabetes is a possibility. Insulin shots are so fun!) So don’t think
calm is good. Good luck in your choice. I “chose” (was talked into) RAI
but now am not sure of what would have been best. If I did it over I might
have taken the pills but the folks on this BB seem to have lost of
complications and symptoms with the pills too. No Graves is best!!