How To Treat Headache?

Hi, I'm a 22 year old female. I have been severe headaches for the past few days. I'll go to bed with a headache and wake up with a headache. It's really hard to keep my eyes open because of it. I will random hot flashes, where I feel like there is noo air in the room I'm in. My stomache has also been hurting, random sharp pains that feel like period cramps. My period finished about 2 weeks ago, so it shouldn't be period cramps. I had sharp chest pain on my right side, under my breast. What can I do? I want to crawl into bed and just stay there!