i had my RAI two weeks ago.. and now i haven't any blood test done yet? i never took my hormone medication also? is it ok? i have lots of unusual feeling after then,, and so i know im having hypothyroidism.. the feeling of sleepiness, groggy all the time.. i always hunger for food doing nothing but to eat and eat, do less! what should be the things done or monitored after the RAI? blood test or what? do i supposed to follow up my doctor,, i went through whole body scan,, and my result is this FUNCTIONING THYROID TISSUE REMNANTS IN THE ANTERIOR NECK... somebody gave the comment its cool,, still i welcome your great opinions either.. thanks