Ok check and double check and triple check that you are using the same products you've always been using. If its the same products check your eating habits. Any change there? Also is this change only happening to your hair? What about your skin? Are there other changes occuring to the rest your body? Have you been stressed out lately? If you're answering yes to more than two of these questions then please get yourself to a doctor. This could be a sign of a more serious problem.