Offf, that's a lot of stuff. Chronic pain is brutal enough on it's own.(I've got minor inconsistent chronic pain from lockjaw.)
I'm glad to hear the cancer your wife has is one of the one's that has a decent chance of being beat. Though I'm not familiar with the PCP in this context.
Getting outside in nice weather is great for both physical and mental health.
I fully understand putting your families health ahead of anything else.