When I noticed hair fal, I consulted a dermatologist, he suggested test for tsh and t3 and t4, where I found out that I have hypothyroid, so I started taking thyroxine and now my thyroid is in normal range but still my hair fall has not stopped it is falling excessively. It has been more than a year now. And one thing I have noticed that the hair has been falling from all areas of my body not only from my head. I had conducted a lot tests and all tests have been normal. I consulted some doctors but they are not able to diagnose the real problem, one is advising me to go for prp.