CAN I SUE RETIREMENT AGENCY FOR EARLY RETIREMENT DUE TO DISCRIMINATION AS WORK RELATED

I HAVE A DAY TO RESPOND TO LAC HEALTH RETIREMENT BOARD WITH A BRIEF TO THEIR ATTORNEY WHO SAID MY DISCRIMNTION OF HOSTILE WORK PLACE CAUSE OSTEO INJURY MAY NOT BE ACCEPTED, ITS NOT ENOUGH PHYSICAL INJURY AND THE MORE DISCRIMINATION. AND IT'S TOO LATE FOR DISCRIMINATION THANKS TO THEM LEADING ME ON OVER THE YEARS. CAN I DO SOMTHING STILL. THEY OFFERED ME A SUPPLEMENTAL DISABILITY NOT WORK RELATED IN 2012, DO I NEED AN ATTORNEY FOR THAT? SOCIALSECURITY SAID YES I WAS DISABLED BUT I DID NOT PAY INTO THEIR SYSTEM, AND HAVE TO GO THROUGH MY RETIREMENT AGENCY. WILL THEY GO BACK FOR TRETRO PAY SINCE I APPLIED FOR DISABILITY WORK RELATED, AND NOW CHANGE IT TO SUPPLEMENTAL. CAN IT BE RETROPAY FROM THE TIME I APPLIED IN 2010?