No one can tell me why and nothing works.

[Gamergirl4]

11 years ago i noticed some thinning. I ignored it thought it was from stress. 4 years ago i was diagnosed with thyroid cancer and had my thyroid removed. By this time my thinning was very significant. But all my hormone levels showed to be normal. Dermatologist says I have non scarring but no known cause. Its not hereditary. And doesn't improve with minoxidil or hair lasers or oils. I try to use hair toppers to cover but my scalp is very sensitive and they hurt my head. So I wear a beanie all year round and its very depressing. I dont know what else to do. I've tried topix too but that stuff gets everywhere and makes my head itch.