Keep your head up brother - you will get through this. You should go on a trip somewhere with your mom if you can..somewhere hot. Try to get her into meditation and yoga. Keep her hydrated with alkaline water/diet. My mother is a cancer survivor. You will be in my prayers bro, don't give up. Take what the doc says with a grain of salt. Your mind is the most powerful tool you have. Be strong spend as much time as you can with her.