Symptoms of hyper, "normal" lab results

[sheila230]

I was hypothyroid 15 years ago. I was very symptomatic, had a goiter and several small nodules. I rec'd treatment, felt better. After a few years, primary care Dr. stopped synthroid treatment since my lab values were normal. Now I am 48 and have all the symptoms of increased BMR and catecholamine sensitivity. I am heat intolerant, restless, several BMs/day, heavy and slightly increased heart beat (80s), insomnia and fatigue. All of which is VERY unusual for me since I am usually sluggish, cold and constipated. I wake up several times a night because my heart is pounding.
My blood pressure was usually 110/60 or so and now has been measured at 137/60! My last TSH BEFORE these events was 4.0 and had usually run in the high 2s, to 3. My 2 TSH values since these symptoms are 1.2 and 1.7. My T3 and T4 are "normal" and I do not have elevated Abs. In fact the current endo said I have never had Hashimoto's based on the current labs and that my goiter and symptoms must have been coincidental. AH! I feel terrible, what is wrong and how do I proceed?
Thanks
Sheila

[LindyC]

Hi I'm new here, I was just reading all the comments, I was tested and positive for hypothyroidism in July 2008,but ni modules  I was put in thyroxine and carbimozole for 18 months was fine whilst on treatment, but after 18 months treatment stopped, thyroid was normal, well T4 was, but my symptoms are all coming back. I'm tested every 4 months and it's frustrating cos I know how I'm feeling however test are normal. I'm at my wits end, any ideas where to go and what to do now

[Mark Lupo, M.D.]

Symptoms are certainly suggestive, but labs are not.
Sounds like you had a clear problem in the past, but now it is not clear if there is a thyroid condition.  Would retest in 4-6 weeks to confirm and consider a TSI blood test to screen for Graves' antibodies, but in these cases the TSH is usually much lower...
May not be thyroid at all - so work with you internist on other possible causes.