Another Hypothyroid Nursing Mama Here...
If the synthroid isn't working for you, find a doc who will prescribe armour thyroid. Synthroid is straight T4, and Armour is a blend of T3 and T4. The assumption most doc's are under is that when a person takes T4 their body makes t3. That was not the case in my situation. My TSH was in the normal range, but I was still tired, puffy, and losing hair. So we switched me to the equivalent dosage of Armour (I was at 150mcg of Synthroid, and am on 3g of Armour) and it was like night and day. I have so much more energy, its amazing
And... I've been hypothyroid for years, but during my pregnancy, my thyroid normalled out, adn didn't crash again until about 6mo pp. so pregnancy affects thyroids different ways for different folks. I have not noticed any supply changes inr elation to my dosage of thyroid meds, either.