I not sure how SSI works, but I wish that would have been an option for me. The first two weeks were really tough, by week three I did better at work, I still feel very tired when I get home, but life goes on...
I know that here in Florida I can look up my SSI records and see what I would be receiving on a monthly basis if I was disabled, you should be able to do the same and maybe then you can have a better idea how it would impact you.
Good luck!!