I have been on Synthroid for a number of years. A couple of months ago, my scalp started itching and I knew that was how my thyroid problem began. Turns out, I was getting too much Synthroid and had my dosage lowered. Felt great for about a month, now I have the occasional itching, but the anxiety, shakiness, and the feeling that my body is quivering on the inside when I wake in the morning. I thought I was having a panic attack. Didn't have that when I was getting too much Synthroid. Just wondering, is this my body adjusting to the lower dose or could I be swinging back into hypo? Bloodwork was looking better a couple of weeks ago, tsh was good and t4 was falling.