Hello
Sounds to me like you might have an infection in the tissues of your knee, called cellulitis. It could also be that your nerves are being pinched from the inflammation. IS there anyway you could have dislocated your hip or knee unknowingly? In any case, I suggest you get in today to have it evaluated. You may need a course of antibiotics, or something else. Only further testing will be able to find the cause.
Please keep me posted. I'm interested in finding out what it is!
Kerry
Kerry, RN
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