I am 30yo and was dx'd with hyperthyroidism in 10/06 following the birth of my first in 3/06. Unclear if post-partum vs. graves b/c I couldn't undergo testing as I was still nursing. Thyroid globulin and thyroid peroxidase ab's were high. Was started on PTU. Became pregnant again in 1/07. Was able to stop PTU at about 7-8 weeks in feb.2007 secondary to levels normalizing. Free T3 and T4 have continued to trend down. I am currently ~25 weeks and my last levels were as follows:
4/16/07 free t4 1.08 (ref 0.89-1.8); free t3 3.3 (ref 2.3-4.2)
5/15/07 free T4 0.84; free T3 2.6
6/11/07 free T4 0.84; free T3 2.4; TSH 0.086 (ref 0.35-5.5)
My OB wants to start synthroid, but endo doesn't. I don't understand the low tsh in relation thyroid level as I wouldn't expect to be pregnant and have pituitary issues.
Of note I had to start on insulin at 9 weeks with this pregnancy (pre-pregnancy weight 100lbs and 5'2''), so not typical time frame or body type for gestational, although I also had to be treated with insulin with ny first.(A1C non-pregnant 5.0 & GAD ab's neg)
Also my mom had Addison's and hypothyroid (presumed polyglandular autoimmune syndrome)dx'd in her 20's.
Sx's (fatigue & weight gain) are present, but hard to sort out while pregnant
?'s:
1. Do you think you would start synthroid
2. Any other ideas re: funky thyroid studies
Thank you for your time and input. I really like my specialist, but am just interested in hearing another opinion.