Lee - just curious - why did she stop taking her meds? Did she think something about them was not making her feel well (unlikely, since she clearly wasn't too high if she sank so low so quickly after stopping) or did she start forgetting? I've often thought how difficult it is - someone who is really low thyroid probably shouldn't be entrusted to remember their medicine every day because we can get so forgetful - and then if you forget to take it, you get more forgetful!!!! My guess is her dose is probably still too low for her - do you know how much she's taking?