One day when I was nine or ten, I got into a fight with my sister. She pulled my hair and I went screaming to my parents. My stepmother checked my head and noticed a bald spot about the size of a quarter. My sister was grounded for pulling out my hair but really it wasn't her fault, it was alopecia areata. The spots would come and go over the years and for a long time was restricted to the back of my head and I was able to hide it. I was 27 when my son was born and when he was 4 months old…