Hi Morning Broken,
I am familiar with the recovery of the surgery you had and do understand that it could lead to PCS/TBI symptoms. I work as a nurse in ICU, where alot of the patient's have had nuerosurgical procedures. Everyone responds differently and it is probable that 5 to 10 percent of the patients have PCS issues in their recovery, just as 5 to 10 percent of concussion victims have PCS. I would start with rest and I bet you will improve with time, be patient and see neurologist to get it written in a report, so you can get the needed support and rest that you will need for recovery. I am sorry for your troubles but you should get better in time. Do not push yourself too much.
Nancy