I know the pain, confusion, and frustration of a head injury. Lots of fear can make your scrambled brain operate much worse. Rest rest rest!
I once had a kid threaten to kill me at school and he told other students. PTSD symptoms skyrocketed. As far as emotions, I was afraid to go to work. To set a precedent, I went to court ( a civil matter) and the kid got 2 years probation, a court order mandating that he not be in the same building as myself, as long as I worked in that school system, mandatory psychiatric help, and he had to improve grades, behavior as a condition of probation.
My point was to set a precedent- consequences will be forthcoming regardless of age, if students break the law. I felt better at work w/o the threat as the student remained out of school until the court matter was settled and could not attend this school if I was in the building physically( restraining order) Workman’s compensation will cover your medical bills but you ( or a friend ) need to fill out that paperwork. You only need to sign.
I suggest you ask a friend for help, havehim/ her print it down or type it, and you sign it. Then give it to the authorities. You must protect yourself medically and personally from further harm from the student. Parents also need to be held accountable for the actions of their kids.
It is great you belong to the Union, get the lawyer to help you feel safe when you go back to work. Also, the commonwealth or county/city attorney will be able to help you w court matters.
As far as medical, find a neurologist/physiatrist who specializes in head injuries if possible. Recovery time can be shorter with proper treatment. I am a friend to multiple TBI-initial treatment matters! Teaching colleges have these resources. Contact the local Brain Injury Association or as to be put on the head injury/brain injury registry and sent info, ask who has a referral list of doctors who specialize in head injuries. Good luck!