I was doing a Barre workout this morning (a plie in horse pose or 2nd position) and the inside of my knee, just inside/under the knee cap popped. The pop was on the down/plie move. Very unusual for me...I could keep going but had to adjust - if my foot was strait on it was better. But now as the day moved on, there is pain on the outside of my knee as well. So though you can t look at my knee and see swelling, because the pain is increasing somewhat, I know there is swelling. I have taken Advil. Just wondering if I should give it a few days or go have it checked.
Hello, What I can infer from your complaints is that you may be suffering from an injury to the soft tissue structures around the knee. I would suggest you to wait for few days and then if you feel your knee joint locks or feels unstable then visit an orthopedist and get an MRI scan. The popping out feeling most commonly occurs after meniscus injury.  Hope I have answered your query. Let me know if I can assist you further.