Nap Time?

I mentioned in this post that I'm still recovering from the first few months of Baby's life. One of the main reasons why my body & mind is having trouble to heal is that I'm incapable of napping, like ever. For example, last night I got a total of 2 hours of sleep and Baby and M have been sound asleep for 2 hours. Me? Nap? I tried. I brushed my teeth, closed my eyes, I visualized, and thought of nothing then thought of everything. Why can't I take a nap?! I feel like crap, my head is killing me, I don't want to do anything else but sleep right now... But I can't. It's too late to try again anyways, Baby will be up soon.