Posted 3/1/2017 11:23 AM (GMT -6)
25 mcg/day is most probably an initial dose for you and you will need to increase the dose, your TSH from Feb is indicative of being hypo, your dose of Euthyrox need to be increased but since I am not a qualified Endo I do not know by how much, If you are following up with an Endo then you need to ask him ASAP !
What was the reason for the RAI ?
After taking RAI you will become permanently hypo and need to be put on Levothyroxine for the rest of your life, if you took the RAI to treat Graves which is causing you hyper then you just need to adjust your dose based on blood tests (TSH) until you become symptom free.
In case of thyroid cancer (and I hope it is not), then you still need to follow up with an Endo since you need to be on a suppressing dose of Levo.
Wishes for good health,