I'm so sorry you are going through this with your mother; I had lots of those same things going on when my stepmother was going downhill, it's the #1 reason I started therapy again. She did a lot of sleeping, falling, etc. but fortunately I had my much older stepsister being "in charge" so I didn't feel quite so helpless except when it was just the two of us.

She doesn't have a doctor/won't go for a full checkup? Mine was part of a large military complex so, for awhile, got too many meds and too many doctors and little organization but, fortunately, my stepsister has nursing training so was able to meet with her doctors finally and get a plan worked out that had her meds only prescribed by one doctor and got her off about half, etc. But she was senile and went downhill pretty fast anyway. She was in a assisted living place my stepsister worked at (that was a blessing too) and my sister had good connections for extra care, etc.

You are doing the best you can, Sabrina! Nothing can really make it "better" with your own needs and hers and the uncertainty of it all but the knowledge she isn't going to ever get "well" again. I found it a very tough road to go down.