That isn't quite how it works - you don't ask your manager what accommodations are available, your doctor writes it out and send the formal documentation in a l

That isn't quite how it works - you don't ask your manager what accommodations are available, your doctor writes it out and send the formal documentation in a letter. If they refuse to give you the needed accommodations, contact an attorney. And you absolutely tell HR so that you avoid exactly what you are describing, of it becoming an informal thing that one manager has negotiated with you. HR should be helpful because this protects the company as much as yourself because there is a formal agreement in place of how to work with a disability. If you can't do the job, disability compensation comes in two forms - SSI, which is granted if you can not hold any job (after tons of paperwork), and disability insurance, which may or may not exist depending on your benefits package. Both are a hassle and not easy to get, but again, contact an attorney. Just submitting forms and saying, "gimme my money" won't work, almost everyone needs assistance to drive those processes. Actually, that is really the answer overall - contact an attorney. They'll give you better answers than I will anyway because despite my own struggles, I'm still just a rando guy on the internet, not an expert.