rftreeman,
Don't start thinking it's all over but the twitchin' just yet.
Unless the doc lifted up your patella, hung a drop light, and got in there to look around, he's guessing best he can.
He's looking at you bieng a bit "Fluffy" and the fact you climb(In his mind he sees a big squirrel with a chainsaw) and possibly repetitively stress the knee. He dosn't know squat untill they get some images.
A couple years back I was running around on the job at 39, about 20lbs over weight, and strapped down with approx. 40lbs of gear 12 hours a day, 5-6 days a week, Walking and sometimes running up and down long flights of stairs. My left knee started to hurt a bit, then a lot, and then going "trick" on me now and then on stairs(Sometimes while 80' above the deck).
Drove me nuts. Went to the doc, and got almost the same shpiel.The same day it rained like mad and got my new(Worn for 3 months) boots wet, so I switched back to the old ones for a couple days.
The Pain and swelling faded, So I stuck with the old boots untill the folow up with the doc, and darn if the swelling went back down the rest of the way.
It seems the new boots(Old reliable brand that switched to China for Manufacture
) broke in bad, and were causing some issues with an old ligament injury. Looked like arthritis and had me fooled too.
Nope, a whole lotta scare and pain over 150 dollar Boots.
It ain't over untill the MRI sings.
Keep positive!
Best of luck to ya!
Dingeryote