What can I do for continued hair loss?

Patient: I need info on hair loss. Can it be related to constant knee pain? Does not sleeping well at nite affect hair?

Symptoms: My hair falls out terribly. This has been happening for over 2 years since I last hurt my knee. I have been to the Dr and rogaine and biotin are not making any difference. Is there anything else. I also use a medicated shampoo for the itch that never goes away. I do not sleep well at nite and have constant pain from my knees is this related?