Before my accident I was being treated for migraines. I had had an MRI and tryed many meds and changed my diet completely before getting them under control. I can tell you this, now that I am 9 month into recovering from PTSD and PCS the headache is totall different. They start, travel and last in a different way. I can even tell when I am having a migrain instead of my normal constant headache. I am still on mondo pain meds but it still hurts and I can still tell the difference.
I know when you are in pain and have a hard time communicating and no one has real answers it begins to wear you down and make you desparet. Don't give up or in if you believe that the answers the Dr. is giving you don't fit what is happening to you speak up and tell them. If they won't listen change Dr.s.
Good luck!