I have similar problem. I had dry scalp. This is late stage of "adrenal fatigue". It will take awhile to recover. You will feel better once a program started. I worked with Dr. lam. His approach worked well for me. Though I read other doctors and add stuff to Lam's protocol from other doctors. Ray Peat, for example. If you start with dr Lam. after awhile add Thyroid support to the protocol Selenium is very important. Do n't add much of Iodine (from my experience).
You also need to rebalance the gut flora. I used Dr James Wilson Body Guard and Squeaky Clean. I have posted the protocol several time. check under my name. You may do Indican test to see how bad is pathogene overgrow.
Now, I even started to regrow hair... Not sure it grows how it was before.