Joint flare up

Not sure if it's related, years ago I had a toe issue. Got some orthotics and started keto and it's been resolved, haven't really thought about it for a few years.

Yesterday it came back, and I'm trying to figure out what the trigger was

I have two theories:

1. on Friday I had a bunch of pistachios. Something in the nuts may be encouraging inflammation. Maybe oxalates
2. I've lost 45kg since I got these sandals so they are very loose and I find myself flicking up my toes while I walk so they dont fly off

Other than last Friday, I've been pure carnivore for a long time. Just a weird situation. I don't plan on repeating the experiment