Lately, I've been getting headaches, and for the past few months, always when I wake up, unless I sleep until I literally cannot sleep anymore (12 hours or more) and even then sometimes I still have a slight ache. If the headache
is there when I wake up, it often has gone after about an hour into the day. Throughout the day they come and go, often when I attempt to focus on a certain job really hard, e.g. a question on a maths paper, a headache will spurt up.