u/InternationalWar5982

Hello, 32 years old male here.
Had Acl surgery 2 years ago and little bit of meniscectomy 7-9%.
I noticed that I have sort of knee disconfort like the behind of the knee feeling exhausted feeling when standing.
Everything improves when i start walking .
Also noted that after periods of inactivity like a week or so i get a dull pain when sitting, it goes away with walking.
Its strange bcuz when i go hike everything improves no pain and knee feels normal.
No pain őr disconfort in bed at night or morning.
Idk if it this matters but recently had calves feeling tired or exhausted which has gone away after stretching.
I'am currently waiting for my MRI, but until i wait it thought i ask people here.
Could this be related to knee oa?