I have always had a thyroid function test at least once a year prior to May 2010, when I had a high TSH, but as mentioned earlier, in June 2010, my TSH became normal (without adjusting my dosage .75mcg). The next test came last November 2011, when my TSH was 9.230 (a month after my PN symptoms). I dont know how long does it take to be hypo to affect the nerves. In my case, I do not think that I have been hypo for a long time.

SInce my TSH has been low for 5 months now, does hyperthyroidism affect the nerves the way a hypo does? Is decreasing the Synthroid the ideal strategy in my case? The endocrinologist, unfortunately, was not so interested to look at the summary I made for my TSH results and the adjustments made for my medicine.

Thank you.