Headache

I didn't have enough sleep for the past... 2 weeks, I think. The side effect finally came to me last nite. Around 8pm I started to have slight headache. Since I have something to do, I just ignored it. Then it got gradually worse and worse until finally I have to reject my friend's help on the thing she has to hand in tomorrow. I fell bad about it, but I really can't take it anymore. My head feels as if it's going to burst. I admit that I had overworked. I need more rest, as my room mate had said. Dear room mate, if you are reading this, I want to tell you that I will take care of myself from now on. Don't worry! XD