I've had 4 concussions, two of which were very severe, one causing amnesia & loss of time. After each concussion I was diagnosed with PCS. My headaches never went away & now 9 years after my last head injury the headaches are so severe I don't have words to describe the pain. At times it's my entire head that hurts & other times it's only on my right side from my eye back encompassing the entire right side of my head. Stress can be a trigger but at times the headaches occur seemingly at random & can last a day or more. I have no insurance so doctors & tests are an issue. Has anyone else experienced anything similar?? I'm desperate.