Anyone experienced a similar occurrence?

Ran last weekend, 10 miles. Knee felt as if it was locking up on me. Was running slower pace with a friend so I was able to fight through.

Couple days later the pain felt fine but I wanted to tie it a rest as I had a 17 mile run planned for yesterday in my marathon block.

Yesterday I ran, about 5 miles in the knee pain came back. Was running with a different friend, faster pace than last week. Fought through it but could never open up my stride for a faster pace , my knee wouldn’t allow me and the pain on the inside of my knee said no.

This morning I woke up with swelling above the knee (felt almost liquid like) and have had trouble applying weight when taking stairs and doing other activities. Has anyone had similar feelings to this?

Knee has a catch feeling, has popped frequently , and hurts rather than feeling relieving. Simple things like pressing the brake in my car I can feel the inside knee pain.

I do plan to see a OT this week and maybe get imaging if needed. Just curious if anyone has had similar experience.

TLDR: knee locking up during long runs, pain lasting into following days, fluid