I had slight scoliosis when I was in middle school. It was because I used to have a one-shoulder backpack that I adored. I started using the standard backpack and everything was corrected. Don't worry about it way too much. Scoliosis might vary in degree but it can be corrected. I too have asthma. It was worse when I was younger, but now it's mostly just exercise- or sickness-induced.