So, I've been on synthroid (for "sub clinical" hypothyroid - was 2.9ish) for about 9 mos (TSH after 6 wks was 1.4ish). A few months ago, I started taking iodine supplements... After 6 weeks or so, I started getting hyper- symptoms (major insomnia, heart palpations, etc.). I'm really curious to see if I was simply iodine-deficient, and not actually hypothyroid, so I've stopped taking the synthroid (monitoring for hypo- symptoms and I did taper for a week)... Anyone have a suggestion about how long I should be off synthroid before having my TSH/free T4 drawn? I'd ask the MD, but I have a feeling that answer will be "don't go off the medicine, take more medicine for the insomnia, and we'll do $1,000,000 in tests for your heart..."
Anyone have any thoughts?