J.K.
I have hypothyroid and it makes my head itch. Before I was diagnosed, my head itched like crazy. I'd go the the doctor and have them look for lice. I didn't have lice. But when I was diagnosed and got on the right meds, it went away. Now sometimes if my meds need adjusting, my head will itch along with my forehead. I have no idea if that's helpful or if I'm the only one in the world who has that symptom with hypothyroid, but I thought I'd throw that out there. Good luck, I know how miserable it is.