Have あなた taken anything yet, like Advil? That takes about 20 min to kick in. Lie down and relax, avoid lights, and maybe try to sleep. That sometimes helps me.
Oooo...good luck with your exam. Advil (ibuprofen) won't make あなた sleepy, but it's a muscle relaxant and that may help. Staying hydrated is definitely important, as well as not leting yourself get too hungry while you're studying. Try taking a couple of 分 to breathe deeply and totally relax. Picture yourself doing well on the exam. Hope あなた feel better soon.
