I have that scratching thing, too! It’s incredibly sensitive and painful. Worse in evening. Also have plantar fasciitis. Lots of weird after effects with this surgery. Getting fed up, it’s about 12 weeks now, things with knee have stalked or backslid somewhat and this new stuff is taking over.
Another question - have other folks been able to ride bicycles? The real kind, on an actual street, after healing? I’d love to do that, hoping for the best.