Danielle,
Sorry your not feeling well. I hope you're better soon. The webcam was very enjoyable. You shouldn't feel that you have to perform for us every time. I find it just as enjoyable chatting with you. Judging from the other comments I've read, I'm not alone in that.
I don't get migranes often but I've had a few in my life and they can be absolutely debilitating. I wouldn't wish those on my worst enemy! Please don't worry about missing a class or two, or that someone will think you're a hypochondriac for going to the ER. Better to go and find out there's nothing wrong than to not go and end up seriously ill.
Don't stress yourself out about everything you "need" to do. Your health should come before everything else
Get well soon Sweetie!