So it started about 5 years ago when my mum was diagnosed with breast cancer. She had an awful time, not that we expected it to be easy, but we went through chemo, radiotherapy and then surgery. The cancer had gone but she still suffered from side effects from various medications. 

Over the last few months she's been feeling ill and I've had to listen to her becoming weaker. I don't live near her so, to put it bluntly, lockdown has been a b*tch. 

She went to the doctor for the pain she was in but the pain management has made her really sick. She barely eats now and my dad is watching her waste away. She had various scans and tests.
Yesterday she received the diagnosis. Cancer is back. Lungs, liver and bones. We don't know the stage yet or how bad it is but wow... Not really sure how I'm feeling about it. I'm been telling people that until we know more about it and what stage it is, and treatment, there's nothing we can do other than be supportive. Everyone asks if I'm ok but I feel numb. Is that normal? I've had family members on the phone angry or upset. They've praised me for keeping a level head about the whole thing. How should I feel? 
I hope she receives a covid vaccine soon so I can visit once restrictions are lifted. She's only in her 60's. It doesn't seem fair but at the same time I wouldn't wish this on my worst enemy