What are these headaches?

I've been having headaches when I have my period..is't ok?

a lot of the time I work out I get headaches, could this be because not enought water?

Can you get a headache from not enough sleep? Or not eating enough?

is it normal to be dizzy and well not dizzy but your stomack to hurt as if you want to throw up during period and have heada...

What happens that makes you get a headache? I've had one for about 4 hours now and thinking about what makes headaches come a...

umm how do I get rid of a really bad headach without taking pills (asprin) ???

I have a huge headache on one side of my forehead and I feel like I need to sneeze but I can't..I know it sounds weird. Would...

I have been getting dizzy every now and then and having headaches. I dont know if it could be because I am pregnant or someth...

okay, it doesn't feel like a normal headache.. it's sharp pains that feels like glass ripping into my brain!! well, it doesn'...

I don't wear glasses but I can read clearly, however I get really bad headaches when I read. Why?