About a year ago I had an incident where my foot stayed still and the top of my leg rotated while the bottom stayed still and I have instant knee pain that I believe after a few days went away but when it happened i had to rotate my leg in an odd way to be able to stand up again. Ever since then my knee chooses to randomly lock up like that where its very painful and I can’t move or do anything until I pop it it makes a loud pop that anyone can here and it definitely hurts. I workout everyday so I can feel it randomly or if I’m about to stand up from something. But today i started to feel that pain on a whole new level nothing happened but it locked really bad where i couldn’t unlock it without horrible pain or force and it kept happening consecutively for about an hour, since then it feels sore and like its bruised on the inside, i can straighten it when its unlocked but with pain, kinda hurts to go up the stairs and it keep giving me that pain of when it needs to be unlocked but it is unlocked.