Also get your eyes checked

chronic headaches may be caused by lot of factors if u think its from trigger points u first find out the cause of the trigger point it may be a previous injury or may be the posture or improper exercises or some nutritional factor involved and we need to find out whether there is any myofascial components involved too then we need to treat the cause of trigger point

If it's Myfascial trigger then Ultrasonic and laser is good treatment plus REST . Time would take around 10days to settle if you start treatment soon.