Nailit, arrange a meeting with her Drs and make sure she's getting all of the pain relief she can. She wants to be treated because she feels she might have a little more in her. I know you can see that she probably hasn't, but you have to respect her wishes to be treated even if it's not in her own interests and the Drs will honestly do their best to make her as pain free as possible. Don't do anything rash, argue with people etc however upset you are, you are all ultimately aiming for the same thing even if there are differences of opinion about how to achieve that. I know how hard it is, at Christmas I'd have given anything if my Grandfather could have just let go, but he didn't and he's still with us, and far more pain free than he was then ( he's also terminally ill) as they have altered his treatment and his painkilling regime. I'm so sorry you're both going through this, but you have to be calm and strong now for your Mum, and I know you will x