So Honey had her appointment today. However before the appointment on Saturday we discovered a cut on the edge of one of her pads, and while we explored that, we saw wedged, way down between the two pads..a ... wart like bump... So we had something concrete for the vet to look at, he didn't venture an opinion on arthritis and wants to see to what degree this lump of dead skin is effecting honey before looking into anything else. He cut it down so it would bother her less, and gave us anti inflammatory medicine, which is the least invasive of the treatments he discussed. We'll see how it responds.
Here is a link to what it looks like. I trim Honey's feet frequently these days, in an attempt to make walking easier for her, and we specifically had our normal vet look at her pads in January, so this had to have swelled up relatively quickly for me to not have seen it while poking around. I feel so bad for her...
https://photos.isophotostudio.com/p1044321924/hf6ce0d79#hf6ce0d79