I know this isn't of any comfort to you, but this is what a lot of cancer patients go through during chemo, it affects some worse than others. I will continue my prayers for your Mom and you. Be strong, this is what your Mom needs most right now. Think of all the times she has been there to help you, your being strong will be a big help to her at this time. Even the smallest thing is a big help and comfort to her now.
Have fun and be creative!