Figuring out mystery pain!

I think I know what it is now. I remembered having this problem the last time I was sick, too. It's not bedsores, cause there's no sore yet, but I tend to favour lying on my right side when I sleep and the way my bed is, I tend to put most of the pressure of my body weight on my lower ribcage and hip. I also sleep long than most people. Most people sleep 6-8 hours. I sleep 10-11 hours. I also spend extra time in bed if I'm not feeling well.

I don't know what I can do about this other than try to fall asleep on my left more.