I've been where you are with the headaches after the accident. My oxyput was messed up, when the ciropractor straightened it out the headaches diminished a lot. That is where the head joins the spine. It was a year and a half after my accident that I finally found a chiropractor to work on it, after the doctors did nothing but prescribe meds to try to kill the pain. I got Bextra, that was a nasty drug and I got the high blood pressure from it which got me two more meds till I quit the bextra and the two drugs. I dropped half my meds at once, except for the ones I knew helped with the epilepsy.
My regular chiropractor wouldn't touch me, he wanted nothing to do with insurance companies trying to talk him into saying I was not hurt. He did see me unofficially though, but would not do anything other than advise me. He told me where to tell the doctors to look but they ignored me even though I showed them the MRI and catscan. The chiropractor who the insurance company suggested put me through hell for two months till one time I went and the worker said he would fix my neck, they knew that the oxyput was off from the beginning but knew I wouldn't come back if it was fixed so kept waiting because between my health insurance and car insurance they paid very well. Having good insurance sucks.
Doctors turn into vultures when you get hurt and there is available money. I did have a couple of specialists that were good, but the main doctor I had was a pill pusher at the time and she was messing up everyone elses treatment by constantly giving new medicines and sending me to the wrong people. My neurologist told me to stop the other meds so she could see if her meds were causing many of the major problems, they were but she could not tell because I was taking about twenty pills a day.
Some of the meds actually were stopping the ability of the nervous system to repair itself. I found that out after the fact. The two neurologists were decent, but my doctor had money signs in her eyes and she was a lot messed up with diagnosing. I tried to tell my wife, she would not listen. The specialists were telling me to find a new doctor. Until my daughter went to her with my grandson her nephew, she believed I was dilusional.
My daughter works with medical records and talks to doctors and nurses all the time in cities around the country and she can see if a diagnosis is right. That doctor completely misdiagnosed my grandson saying that he had something completely wrong, not one symptom matched. You can get into that doctor as a new patient anytime, she always has openings even though she has been working there for twenty years. You can't ever get into the other two doctors in the clinic and most other doctors are not taking new patients. Finally my wife got a new doctor after my daughter confirmed she was a quack.