Can I sue due to electrical shock while at work?

I am a CNA at a long term care facility. I had finished giving a shower to one of the residents. We were getting ready to leave the shower room and I went to turn off the heater, at which time I was shocked. A report was made and I was sent to the Dr. I experienced numbness and tingling in the arm and hearing loss in my ear! The EMG came back with negative results however there is damage to my cochlea that cannot be repaired. I still experience pain daily in my arm and constant pain in my ear. My work has informed me that when the electrician came to inspect the heater they found that it was not grounded. This bathroom was remodeled in the last 2 years! From what little I know about electricity all outlet/fixtures must be a GFCI or ground in some way. Please help!