Suggest Treatment For Severe Headache

Hi, I have been suffering from severe headache since 6 months. It normally starts at the early morning, when I just wake-up from the bed. Pain spreads whole head, sometime with pain in neck and waist. It will certainly come if I don't cover-up my head during sleeping. I used to sleep on floor to keep right posture at sleeping. Found pillow height critical to avoid neck cramping. I scared about so-called doctors. By profession I am Engineer, work pressure is always high. Is this tension related mygrain or others? Please suggest urgently what to do?