I got headache daily since a week?!

I got headache daily since a week?

i have a headache daily since a week only when i got up frm sleeping i sleep about 9-10 hours daily all at night i don't eat much i am not fat at all onlt 44.7KG i am not short i am 15 years old, may it be the atmosphere there air condition it's too hot? what are the reason what are the solutions

Do not know the cause. But here is the cure:
2 Liquid advils (over the counter not prescription)
and about 4 oz coke. Take it lay dawn until headache is magically blown away.