Has anyone had cold cap chemo & been on thyroxine?

Hi SCat. I take thyroxine for Hashimoto's. I tried the cold cap. I don't believe it was fitted properly on me and so abandoned it after two rounds of chemo (TC). Where it did have full contact with my head it worked. My hair has since grown back and seems to be as thick as ever even though I am menopausal and taking Letrozole, two things that can thin your hair. Of course it may change but so far so good. K xox