Haven’t read the whole thread.
Sounds like a Baker’s cyst, which means lots more swelling inside the knee.
Ice and elevation is your best friend to start, and of course rest if you can. Compression was a mixed bag for me.
Time to see a doc … lots of possiblities …
RICE never a bad thing …
"What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as freedom should not be highly rated." Thomas Paine
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