It took 8 years and three hearings for my wife to win her case. She was a nurse, and I've since thought that it would sure be poetic justice if the judge were hospitalized and my "undisabled" wife were assigned to nurse him back to health, in the condition she's in. I think he'd get his eyes opened in a hurry. When I retired early this year, my company promptly dropped her from my insurance, because they don't cover "medicare eligible" people. You can't win.
Be persistent, and you'll eventually enrich your attorney. Better than not getting what's coming to you though. Hang in. Lew