Okay so for the last week or so I've been having headaches on the right side of my head and its usually in the front. it feels like a pressure under the skin kinda thing and it gets worse when ever i imagine a picture in my head. for example if someone describes a bird to me and i imagine what that bird would look like the headache gets worse. I've also noticed it starts later in the day usually when school ends around 2:30pm it starts and its usually a 6-7 on a 1-10 scale and pain killers dont help. Any ideas of what it could be? i dont think its food related seeing as the head ache usually starts around the same time and i dont eat the same things every day. please help if you can.