Painfully Itchy Scalp and Hairloss 😭

Over the past couple of years, my scalp has become so painfully itchy. I don’t have dandruff. Along with this, my hair is falling out everywhere. I used to have very heavy, very thick hair. Now it is so thin and looks awful. I’ve tried organic coconut oil, hair masks, apple cider vinegar, and many more things. Can anyone offer advice?