Welcome to the club! /images/graemlins/laugh.gif
I have the exact same problem as you do. I mean the same sides and all. So this is what I did:
1. Switched up wrapping sides. I noticed that I would always wrap in one direction.
2. Changed the side I slept on. I always slept on my right side, which gave me the impression that maybe I was hindering the growth from my scalp, since I laid on that side of my head.
3. Pay more attention to the weaker side.
4. Be much more gentler to the weaker side.
5. If you wear parts, part your hair on the left side. Give that side of the scalp some air. I always used to part on the right.
6. Extra protect the weaker side. For example, I make sure I coat the ends more on that side opposed to the already healthy side.
7. Make sure there is less stress on the weaker side. Like, no tugging, etc.
Overall, almost everyone has a spot somewhere on their head that seems to be lagging behind the others in growth. These were just some little tips I've discovered, to help hinder breakage, thinning, etc.