Connie, I am so sorry to hear about the pain your mother is enduring right now
May God grant her the strength to fight through this and may he ease her pain. I will be praying especially for you, I know how hard this must be for you and I am sure the pain you are feeling right now is as great if not greater than what your mother is going through. It is so hard to watch our loved ones suffer when we can do nothing to help them.
I wish there was something I could do, some way I could take all of this away for you...if I could do it, I would. Your family is in my prayers daily and you are in my thoughts often. I printed out your Mothers picture (hope you don't mind...) and brought it to our local church here and told them about what she was going through and asked if their prayer chain would pray for her. They said they would and they pray every evening from 8:00 pm until 11:00 pm so you can know many voices are going up towards heaven on her behalf.
Big hugs to you!