Discussions that mention synthroid

Thyroid Disorders board


I have been taking 100 mcg of Snythroid for about 6 weeks now. I have started experiencing heart palpitations (irregular heartbeat). I have also started experiencing shortness of breath. It hits all of a sudden and I am winded like I have just did major exercise, but in fact, I have not overexerted myself. Is this normal when first taking synthroid?

My TSH bloodwork was 7.213H when diagnosed. The lab range was 0.350 - 5.500.
My doctor started me out at 50 mcg for 2 weeks, then told me to increase to 100 mcg for 2 weeks and then told me to increase to 150 mcg for 2 weeks, for a grand total of 150 mcg. I increased my dosage to 2 50 mcg tablets, but didn't feel good about increasing dosage to 3 tablets because I had several people tell me that wasn't right to keep increasing my dosage without doing bloodwork.

My doctor told me to come back in 4 months to have my blood work tested again.

So do you think that the dosage I'm taking might be causing the palpitations and shortness of breath? I did not have those symptoms before I started taking Synthroid.
Thyroxine T4 results were 8.0 (Lab range 4.5 - 12.0)
T3 Uptake 33 (range 24-39)
Free Thyroxine Index 2.6 (range 1.2-4.9

My TSH 2 years ago was 2.16, so jumping to 7.213 is a pretty big jump.

I didn't have the shortness of breath and heart palpitations before taking Synthroid. They seem to be getting more and more frequent every day.

I have been struggling for a while with fatigue, muscle pains, weight gain, extreme fatigue, memory fog, hands going numb while I am sleeping. Doctor diagnosed me as having Fibromyalgia several years ago. But after reading a lot of these posts I see that all my symptoms are the same as hypo thyroid.

I still am not feeling better after taking the Synthroid for 6 weeks though.
Thanks so much for the advice. I think I will look at contacting another doctor.

I had an EKG when they did the blood work and they said my heart was fine. I had a physical that my workplace offers to us every 2 years and that is who told me I had thyroid problems.

I took the results to my doctor and he more or less blew it off. I kept telling him how bad I felt and he finally prescribed me the Synthroid.

That should have been my first sign to find another doctor when I had to push the issue.