Overthinking and headache. This problem?

I am a btech second year student.my present situation is like i am suffering for continuos headaches due to over thinking,anxiety and not getting good sleep.in mornings during I wake up thinking something random . i am not in a feeling like "i slept well in night".something runs in my mind everytime . i am ok with that but when headache starts i cannot able to control both headache and thoughts.when i consulted psychiatrist two years back in intermediate (same problem),Doctor prescribed me two tablets(nexito plus,naprosyn).i stopped using that medicine after my plus2. after when i joined btech i came through same problem and again i started using that medicine. i tried homeopathy for a while in first year.and also i used to take daily one pill each (nexito plus,naprosyn) in last month.at present i am not taking any medicine. i have no responsibilities and able to analyse my thoughts but i not able to overcome these headaches and sleeplessness. how can i overcome from this problem???