My husband has stage 4 cancer, diagnosed last November. We were quite knowledgeable about chemo as our son in law was diagnosed with multiple myeloma a few months before.
His first bout of chemo was the strongest, it made his blood pressure plummet, but I made sure he lay flat and raised his feet and it gradually improved.
His Oncologist then prescribed 5 further doses, but less strong, and he managed much better.
Try to take things day by day, go for short walks, eat light meals with lots of veg. He did find he had constipation and fruit and veg helped. He was never sick, the treatment is much kinder now.
He lost his hair, but it has all grown back after 4 months.
Our smaller grandkids never even noticed there was much wrong.
He is about to start radiotherapy once a week for 6 weeks.
I find he does like me around most of the time, and I try to stay positive and strong,and we still have lots of laughs!
Nights are the worst, our minds are so full of stuff,and I bought him Nytol, which he took for a week or so.
The blinking’ virus stopped some treatment for a while, so I get impatient with people moaning about lockdown etc. If that was all our family had to worry about , life would be easy!
Good luck with it all.