Can Occipital Neuralgia Contribute To Cognitive Impairment From An Assault.

Can occipital neuralgia contribute to cognitive impairment from an assault. I had two head injuries within a week. MRI that was done 4 weeks later didn’t even show lesions from previous concussions or a mild brain injury 9 years ago from coding in the OR over 45 mins. How to explain what I’m going through when the insurancecomoany says no to treatment and I’m getting worse. Unable to work or do anything but Dr appointments.