Hi Pauline,
I've done a great deal of research on alopecia which helped me write my book, "If Your Hair Falls Out, Keep Dancing!" In my research I looked into the psychological aspects of the condition. New research suggests that the causes are genetic, and factors such as hormones, illness and shock can trigger onset.
I believe that we all have the capability to heal ourselves without outside help, but most of us are not at the point in our spiritual evolution to be able get in touch with, and harness, that power.
I also agree that we create our own situations in all aspects of our lives, but it's not only this particular life that is the issue. There may be old patterns from previous lives that we are dealing with; we may have been given this particular condition to foster soul growth; therefore we must experience it and endure it.