Were any of you diagnosed with hyperthyroidism during or before your pregnancy.

I've had issues with my heart for probably about 10yrs, meaning palpitations and shortness of breathe and have had tons of tests all of which came back normal, however, last time at the OBGYN I told them about it so they ran a thyroid test and it came back slightly low. I have a full thyroid panel tomorrow.

I was just wondering how they can treat this during pregnancy and will it affect the baby??

Thanks