[Candace]

If you have low thyroid, that can certainly affect breast growth. If you need thyroid medication, stay away from synthetic and opt for some sort of natural thyroid such as Naturthroid, Westhroid or Armour. I was finally starting to get breast growth when my thyroid levels were close to normal. My medical provider doesn't seem to want to renew my prescription, and my growth seems to have stopped.

You can get thyroid on the "grey" market if your doctor insists on being unhelpful.