I know I'm supposed to be sleeping on my left side, but I'm a VERY restless sleeper, so I often find myself waking up in the middle of the night in other positions, mostly on my stomach. I was always stomach sleeper, and since I don't have much of a bump yet I seem to gravitate towards that position.

Anyway, when I wake up in the middle of the night and roll to my side, I get pains down the middle of my torso. It goes away within seconds, but should this pain concern me?