What Causes Numbness In Hands And Legs During Night?

I recently had an emergency C section, which was followed by an abcess and infection. The abcess is back again and am now on antibiotics again. My concern though is that all throughout the day and especially at night, my hands, arms, feet, and legs fall asleep horribly and stay that way for long periods of time. I have no idea what's going on and it's scary.