A couple of weeks ago I noticed an unusual amount of hair lying around the house. Note that I am always "shedding" a lot of hair — one of my ex-boyfriends used to say that he could always tell which rooms I have been in just by looking at the hair on the ground — so imagine just how much more hair there must be for me to become concerned. My post-partum hair loss had started. I had read that some women's hair can fall out in clumps, and that's exactly what has been happening to me. Chunks of matted hair on my pillow. A mangled mess in the bathroom drain. And hair everywhere on the floor. I keep my hair up in a...