Middle of the night questions - mum was diagnosed the other day. Wondering what chemo will be like and how to look after her

Hello, 

Mum was diagnosed yesterday and it’s now the middle of the night, can’t sleep and have googled all manner of things. 

I was going to list the questions swirling around in my head but I don’t think they’re answerable on this forum. 

We are waiting for an oncology appointment to get started with chemotherapy.  

Do you stay with the person you are caring for whilst they have their chemotherapy?