Me too, how bizarre – I’ve never known anyone else with it before.
Yes, burning sensation and a tight tension pain affect my knees badly from time to time, but it doesn’t concern me too much as I know what it is and that I just have to take it easy for a bit. Dislocations started to hurt more and more as I got older so I had to build up the muscles around joints in a particular way to limit it as much as possible (my physio is a genius), and I use strapping fairly generously on my knees and ankles when doing anything strenuous.
Definitely get yourself to the gp ASAP – knees are not easily replaced or repaired so if you’ve got something going on you need every therapy possible as early as you can. Hope it’s nothing too dramatic