Oh Sylvia I'm so sorry about your Mom! That is too much pain to pile on at once! There is no easy way through this. Try to just deal with whatever is most pressing at the moment because the weight of all of it all together is just too much.
I lost both my parents many years ago when I was young and a single Mom at that time. I did not have RSD/CRPS back then so I can't imagine that on top of it all.
This whole Gov't. thing is such a mess, I'm sorry you're caught in it too.
Please know we're all thinking of you and if I could bear some of the burden for you I would.