i use a hand sander at work and within a month i lost muscle mass and strength in my hand,i went to see a company doctor that they appointed me 2 and

He poked my hand with an household needle and said i think its an nerve in your elbow,i went to my family doctor and he sent me to a neauroligist and he said the vibration from the sander was killing an nerve in my hand and i need to stay off it for 3 months so my nerve can grow back and my muscle in my hand will come back,so luckily when i got sent to night shift an forklift job was giving to me and 3 months later he was rt and now im stuck with an doctor bill that they refuse to pay for.i would like to know if i have an case or not.