Sorry for the odd term. I'm in IT so it was the best way I could come up with to describe it.

It's like everything works, but just feels a little "slower" than normal. If that makes sense.

I obviously haven't ruled out arthritis (as another poster suggested) but has felt unlikely it would manifest itself in both hands and both feet at the same time and in the same way. I have arthritis in my knee (from multiple ACL reconstructions) and it's quite a bit different - including actual pain rather than just sluggishness.

Anyway, more or less trying to find others out there with the same sort of journey. Keeping an eye on things in the interim and hoping for improvement.