Headache to the back of head. To do.

Hi doctor, I am getting head ache continously. Which is low head ache not every painfull. It comes and goes away. I am not geting enough sleep. Like I am getting up many times when i am sleep. My eyes are paining but when i fall asleep. I am unabe to sleep for atleast 6 hours. I dont have any habbits of smoking or else drinking. I usually get head ache to the back of the head. And also i am having mucus in neck from few days.. but before that also I am having head ache not this frequent.. like i used to have head ache for every 2 or 3 days before..but now its like I am having it daily.. like very low head ache..that too only for sometimes.. i donno if that is because i m feeling i am having head ache or else really i m having head ache.. please suggest what to do.