I had few major side effects on chemo 3 years ago.
Main ones were , my tongue went black for about 5 days, I had less energy, lost body hair by 50%, fingernails cracked easily, slight loss of sensation in finger tips and toes, taste buds lost subtle flavour taste. I did have a low blood count after the first infusion so had to have self administered injections that I reacted badly to.
So the good news, apart from body hair, all is as it was now, cancer in lymphs shrunk back to normal size. I ran two marathons on week 13 and 15 of chemo. My PSA is 0.11 down from 342 with the help of abiraterone started 2 years ago. I still run ultra marathons.
My only advice is that if hubby feels tired then rest otherwise live life to the full.
Kev