Hi, I missed my period by 19 days, at first I used to feel sleepy all the time, well, I still get that alot, and now my head feels like it's got air in it and it's about to blow.sometimes i feel like something moving in my stomach. It sort of feels like a worm, well sort of. um, sometimes i feel like i have to puke, but then i don't. and then sometimes my body feels so hot, it makes me want to sit in the air condition alot..Doc, what does this mean?