Hi Dave, sorry to hear about the recent struggles and Katie's health issues, I hope they can figure out what is it and you BOTH start feeling better soon.
I get the burn out, been in this hobby over 20 years and there have been times over those years when things are bad or too much going on or just burnt out and can't handle... the reptiles really are hardy and it's nice to know they can get along with some slack in care here and there, especially for someone like you that has such a great routine and setup. They will be okay with a dirty cage here and there and a few missed meals.
Thank you for sharing, take it one day (sometimes... one hour!) at a time and hang in there.
*hugs*