I'm so worried. I am 13 wks and 5 days. I am 28 years old with 2 amazing healthy little boys! I received a call from my Dr stating he referred me to a perinatal clinic and endocrinologist as my thyroid levels are continuing to drop and my Free T3 and T4 are high. We heard a strong and steady heartbeat at 170...this just has me worried. Has any other moms out there experienced this!?