I'm so sorry you are struggling with this.

There is no easy answer.

The basics: Give attention to HGD (hygiene, grooming, dress)
Eat at least 3-4 small meals a day, as healthy as possible
Do not isolate inside
Exercise some daily or be in nature
Talk to your supports daily, whoever they are
Use this board as one of your supports

Make an hourly schedule so you don't have to think about what's next. Do this on paper or an excel spreadsheet. Put in time for work, and the other things. During each time block, that's your sole focus. Spend a few minutes deep breathing or meditating in between your blocks. Clear out what you just did, and open yourself for what is in the next block. And repeat.

You mentioned they are giving you **** about accomodations. Are you on FMLA? Is there an employee health department seperate from HR? You mentioned you are able to do some of your work from home. Does this help? Can you have that be part of your normal workweek, to be at home X hours per day/week?

Are you in cognitive behavioral therapy?

Consider theurapeutic massage, which can include accupressure/puncture, cranio sacral therapy, reflexology, reiki, and other energy therapies.

I'm so sorry you are struggling, this sounds very hard. You are not alone, and do not give up hope. If it is necessary, it is OK to file a disability claim, be it short or long term, and/or social security. There is no shame in that.

I'm over-simplifying things, tremendously. But I hope it might help a little. Keep us posted a time or two each day. Be kind and loving towards yourself,