I have started doing a core-strength routine lately, twice a week, doing exercises for the abs, lower back and obliques, although I've noticed someting odd--my abs are sticking out. it looks like a gut, only up higher, and theres a six-pack on it. I dont have a whole lot of body fat. maybe 10%. anyway, I think this is kinda weird. are my abs just getting bigger and stronger? I've never seen anybody else's abs do that. does anyone else have this happen?