Why does your knee hurt on right leg on the right side with sharp pains especially when you squat kneel twist it or go up down the stairs and when it's straightened you feel hear see it pop out?

you need to see a doctor, i'm not sure what it's called, i had something similar. it feels as if something in your knee has moved and you have to massage it back in. seeing a doctor right away is the best option and getting some sort of knee support to hold it all together