I have been mostly nopoo since last November. I have had no issues besides the initial excessive oil. The mostly comes from the fact that I started swimming again in June, and I my hair gets really bad and smelly with the chlorine. I use some directly after swimming that is designed to remove Cl.

Anyway, as of a month or so ago, I noticed that a small patch of my hair feels different. It tangles really easy and generally feels like it lacks any oils. When combing it, it's often knotted unlike the rest of my hair and I noted that more hair is coming out with the comb from that section than when I comb the other regions. This is starting to spread to other portions of my head. I am unsure if this is a medical issue or the result or something I am doing.

Has anyone else experienced something like this?