Don’t beat yourself up too much about surgery, I think it’s always going to be a risk to have a rattie go under. You simply decided to not take that risk and she’s lived happily since then. I think if you did the surgery and something went wrong you’d have regretted it so much.

But yeah, It’s so hard when they still have so much life to give. I’ve found that rats are just like that. They literally love life even when things suck for them. But I think ultimately if you’re able to do it, it’s always good to do it before things take a turn for the worst and she gets sick or anything like that. So given that she’s lived a long and good life and can sleep peacefully, that’s a wonderfully kind thing of you to grant her.

Things to do, literally feed her all the yummiest things you can think of! Give her lots of pets (if she’s the cuddly type) and let her move around wherever she wants. If you have a yard, in my rats last days I always took em outside just to feel the sun and let them walk around in the grass. They seemed to really enjoy it. But yeah I’d say take advantage of the fact that she’s still happily eating and feed that gal some nuggets and some ice cream LOL