Hypothyroid with hyperthyroid symptoms

Hi,
I have been hypothyroid since a partial thyroidectomy for a nodule about 15 yrs. ago. I started taking .1 mcg of Synthroid about 10 yrs. ago and have had no issues until recently. about 6 weeks ago I began having no end of problems. Anxiety, stomach pain, sweating...I am on the down side of peri-menopause at 55. I have had GAD for almost 30 yrs. that I use xanax for as needed.
I went and had blood work done last week and was told that my thyroid levels were 'irregular' at 2.7...I have had my blood work done at least every six months up until this past year when I moved across the country. They lowered my dosage on Friday to .075mcg synthroid and now I have severe anxiety, dry mouth and although the sweating has gotten a bit better it still comes and goes. How long before my system gets used to the new dosage and why does such a small change make such a huge difference? I am feeling so I miserable and I am sure the GAD is only making it worse because I cannot stop thinking about it!

I have been taking Labetalol for HBP for over 5 years now and BP is normal.

(I gave your post a title so hopefully more people will read it)

Post Edited By Moderator (Judy2) : 9/11/2012 6:52:27 AM (GMT-6)

Welcome to HealingWell and the Thyroid forum, MadamDee. As you probably know, your symptoms indicate hyperthyroidism. It's possible that the hormonal changes in your body with perimenopause are contributing, or have perhaps decreased your body's demand for thyroid hormone.

Just to put it in perspective, your dosage change was not tiny. You were taking .1 mg (100 mcg) and that was reduced to 75 mcg, which is a 25% reduction. It usually takes about six weeks for changes in medication to be effective and to be felt, so please try not to stress about not seeing a positive change yet.

I'm hoping you're being followed by a good endocrinologist. (S)he may want to do some additional imagining of your thyroid just to be sure that it hasn't started over-producing hormone for some reason. I'm sure this will be discussed if your medication change doesn't produce the desired results.

I'm sorry you're having this problem, but glad you found our little community. Please do keep us posted, we care about you.

Well I went yesterday and had the Free T3 and T4 done...the doc took me off synthroid until we can see what the numbers are.  TSH was 2.7 last Friday when taken.  I am feeling tired and still a little anxious but the fog has lifted and I feel like I am no longer walking around lost.  After 10 years of meds at .1 we figure that it should take 6 weeks for my system to clearn but hopefully I will be regulated before then.  If the nodule has grown or shows signs of putting out hormone and really screwing me up I really don't want to do the surgery again...it was aweful the first time!!  Do I have any other options and with half a thyroid can I get hyper? Doesn't seem like 1/2 could put out enough.  This is all so confusing...she also thinks it might just be that my gland has started working again or at least correctly since I have finally hit menopause which started 10 years ago....I just love beina girl!