Oh, dear, Red Baron. My knees ache just
to read your description.
I experienced a re-injury on my
replacement knees 8 years after surgery.
Ski accident.

Swollen, sensitive to touch, the whole
lot. And then, random swelling occured
about 10 years after the incident. In
each case, my body was telling me to rest!
I was working with a physical therapist
at the time, and really benefited from the
deep-heat machine/sonogram therapy. And
ice 3-4 times a day.
Who knows why these things happen???
But, if you can...don't worry about your
doctor's judgment....just go! They're
there to help us!!!