I just now heard there's issues with my thyroid levels being low. I'm 14 weeks and have the tests done at 12 weeks and just now heard from the Dr office this morning. They said they'd retest it in 4 weeks. I didn't get much info from the nurse I called back and left a message for my Dr. Is this something to really worry about because I'm freaking out right now. Anyone else have this issue and everything was alright? I have noticed for the last 2 years my hair does not grow anymore. And ever since I've become pregnant with twins I have zero energy. I can barely even walk around the block or do my hair without feeling extreme fatigue. I'm just so scared of losing this babies. I had a loss a year ago so this pregnancy has me on edge.