Hello, about a month ago, I got a terrible headache, it started off not so bad and gradually got worse. So I started taking aspirin and the pain goes away for a few days then came back, after a couple weeks I had a sinus infection, it was really bad, and the headaches kept coming, when I get them, there is pressure in behind my forehead but when I shake my head side to side, the pain is horrible, until I take an aspirin, then it goes away. Still have the sinus infection now, but Ive had these headaches for like a month, I have no med insurance, so I can't see a doc. I have no other symptoms other than somtimes I feel out of it, any advice?