anyone hypothyroid with rapid heartrate?

i know this is usually a hyper symptom and that's why i went to the doctor the other day to have my tsh tested again - only it was 7.5 so he told me to triple my dose of synthroid.  i told him no way!  not the way i feel.  i wasn't taking my consistently cause of my heartrate so i will do it now everyday and see what happens but can you be hypersensitive to the synthroid? 

or can this be a symptom of hypo too?  i'm sooooo confused. 

I have the same problem with my heart rate.
I have alot going on and think that it's more then my hypothyroidism.
You may want to ask your Dr what he/she thinks and pay attention if anything else is going on.

Hazelnut86,

I am on a generic brand of synthroid, and have Hypothyroidism, as well...I have been getting heart palpitations ever since I was on it, but my doctors have cut my dose in half (now down to 25 mcg), and are still working with it...hope they can do the same for you, and that this helps... :)

Also, he is having my Iron panel done again, as Anemia and Hashi's can go hand in hand, and if you are severely Anemic it will raise your heart rate. Maybe something to think of as well