My ribs curve outward on the bottom of my rib cage, and when i sit i slump over a bit. So if u were to look at them from the side, they are like a slide. From the end of freshman year in highschool until late in my junior year, I played video games alot. I played soccer and i participated in track and field, "100 M and Pole Vault." Ive noticed that when i sit, i can force myself to sit straight, but when i am relaxed, i fall into this position where im slumped over. When im slumped over my ribs that are sloped outward are now flat with my abs, if that makes any sense...This also happens when Im standing, but i think i keep a btter posture standing. I really would like to know what is wrong, if anything, and how i can fix it. Thanks.