Have you tried a protein treatment or reconstructor on your hair? I had severe breakage from chemical damage and it was the only thing that helped stop the breakage. Are you still using the straightener on your hair? I was just asking because if you are not then maybe the little stubs you feel are new growth. If the breakage is that close to your scalp have you thought about oiling your scalp? Maybe over night before a wash day. I also use conditioner all the way to the roots my hair is so dry I have to have some slip there to stop breakage.