About a week ago, my knee started feeling sharp pain only when pressure is applied. I don't remember what exactly my position was (maybe I kneeled, maybe my leg touched the under side of a table). But anyway, whatever it was that touched my knee felt like a tiny sharp needle instead! There is no swelling or any visible sign.
I tried to find out what it was but there was nothing there. I rubbed my knee, sort of poked at it to try and pinpoint where the pain came from. It's only on the bottom outside of my right knee - if you were facing me, thinking of my knee as a rounded rectangle, you'd see the "bottom left corner" is what I'm pointing at.
I thought maybe I must've bumped it without noticing, I'm so clumsy like that. So I ignored it and tried to avoid touching it/ putting pressure on that knee.
For about a week, occasionally when I kneel or touch that same spot on my knee, it still feels like I'm stabbing it with a small sharp needle. I almost think maybe something inside my knee is stabbing itself, being pushed into itself when I apply pressure to that specific spot at that specific angle. I can't find much online about it - mostly people who describe a hot/warm stabbing pain along with swelling. I do not have swelling, like I said, nothing visible on the outside which is why it's so hard to find the painful spot.