I had to return to office 3 days a week for no reason. Both  managers of my department are remote, two members of my team are also remote. Just myself and another employee of my department who is at another site have to go back in office. My company is overall not remote friendly. Anyway I submitted ADA paperwork documenting my anxiety and how I would have a hard time returning to office. My doctor asked that I be allowed to work from home as my position obviously can work from home since other people in my department do. I do have a hard time functioning in the open office environment with my anxiety. I find it impossible to concentrate as I'm constantly in fight or flight mode. Anyway HR turned down my request and I don't know what to do. Has anybody had success navigating this?