It feels almost as if my brain is too big for my head and it is pressing against either all of the front of my skull or all of the back of my skull. It's not really localized to one spot like the temples just more of a big area and it turns into a migraine for me too. I would look up intracranial hypertension and see if you fit any of the other symptoms as I seem too. Your doctor could be right as if it is just a migraine caused by tbi or it could not be. I believe my case has something to do with actual pressure being built up in my head.

Either way my advice is to eat healthy anti inflammatory things/supplements and not to push yourself too hard as long as following marks advice. You can ask your doctor about the intracranial pressure too, I just don't know how much they will be able to do for anyone unless it's severe enough to need a lumbar puncture which I doubt. Thanks for your reply!