My hair started falling out a couple of years ago because my thyroid medication was inadequate, and I couldn't convince my doctor I needed a higher dosage. Then even with the higher dosage, it kept falling out, and that's when we found a lump on my thyroid. Well, it's benign, but I was still sent to an endocrinologist, who increased my dosage again, and... no more hair falling out. At least, not in handfuls anymore. And it's finally growing back!! YAY!!

*happy dance*