My hair was coming out in clumps last year from stress. My doctor checked my thyroid and found nothing wrong. My SIL told me take folic acid supplements. I also used Pantene 'full body' shampoo, which didnt fix anything, just made me feel like my hair wasnt as thin as it was. Slowly, the hair stopped falling out. I agree too with naive about getting good sleep. Msn Health has a good article on how to get better sleep.