Suggest Treatment For Hair Loss And Memory Loss

Good evening sir. I m a 22 yo male. I don t have any diseases and I don t take any medications, from a while I ve been suffering from a gradual hair loss or I feel that my hair isn t growing that well, it looks so thin and struggling to grow! My facial and body hair is so thin too, espically the face hair it takes a long time to grow. I ve been taking vitamin tablets and Biotin 5000 from a while hopping that it will help. Also i need too much of sleeping time and Considering my memory its getting worse and worse I ve started forgetting too often, I need more time than usual to study and sometimes I forget names right away! I feel cold more in my extremities and the skin color changes to blue. I got suspects that its all because of abnormalities in my thyroid hormone secretions so I did TSH test but the result was fine, it s 1.07 .. What do you think is the cause of my situation? What do I have probably? Thanks