Mum feeling v pain

Mum just now came to my room. She looked at me depressed and in pain and said she is in great pain. How is life going to pass like that. I asked her what is she trying to say, she said nothing. I asked her if she will do anything foolish, she did not reply me. Somehow I feel that she feels tired of being in pain. But I hope she do not do anything foolish. I don't wish her to be in pain and it pains me to see that. But she should feel better I think as cancer cells get destroyed. But during chemotherapy she will feel terrible also. I tried not to cry and worried that it will make her feel worse.