I feel so lost....

This is fight two for my mother. The first was when I was 16 and we had no support system but what we could figure out on our own. She had Chemo and Radiation then. She ended up in the hospital once, besides the treatments and surgery. This time I am 42, we have a great support system but it seems worse this time. She is almost 60, Breast cancer again. She has been doing just chemo this time and we are almost done with it but it seems so bad right now. She has been in the hospital 3 times so far, needed blood, her adrenal system isn't working right, and her body isn't working right at all. They are quitting the immune therapy because of the lung inflammation side effect. She has fallen from muscles just giving out and her legs not working right. We are at a complete loss at what we should do and whats going on. I don't even know which way to go right now. I'm calling the doctor and maybe the hospital in the morning because she was just released today and already fell twice. We got her off the floor but she wasn't mentally doing great because of these falls. We are also hoping we can just let her heal and do no more Chemo so we can get ready for the double mastectomy. The surgeon wanted to encourange her to get the reconstruction but she is so against that it isn't funny.