I was hit by a bike and a bat months earlier but I am still in pain, what can I do?

I am a security guard and one day I attempted to detain a prior trespasser who then threw his bike at me hitting me in the ankle. This was about 4 months ago. It still hurts to walk down steps. About 2 weeks later the kid was back on my property. He was bidding in one of the resident's unit. While I was waiting for the cops to show up, he came out swinging a bat hitting me in my right hand and left arm right above my elbow. Four months later my arm still randomly goes numb to where it's hard to close my hand and when I lay down. My arm goes numb when it's bent. I don't know if I have permanent nerve damage or what. I don't have the money for medications or to go to the doctor. The kid was caught and I believe he was charged with battery with a deadly weapon. But a day before the case, I was called saying I didn't need to show. But now I'm stuck with this pain and not sure how to go about it.