[at-l] Trick knee?

[Slyatpct at aol.com (Slyatpct@aol.com)]

For the past month or so I've been walking around with a bit of a limp and a 
trick knee.  It's hard to explain but, it almost feels as though the bottom 
half of my leg is artificial and joined by a loose hinge when I'm walking.  The 
leg isn't very strong and it's difficult to do a one legged squat even if I 
hold something for balance.  I would imagine I'd have a tough time pushing off 
on the uphills or breaking going down.  It really doesn't hurt, until it 
buckles back(?).  Sometimes it will "give" and I'll have to catch my balance with my 
other leg in a spastic moment.

For the life of me I can't recall anytime I may have injured it.  It didn't 
happen hiking, since I haven't been, so there's really no excuse.  I aim to 
test it out next week if it's not raining.

Any ideas?

Thanks,

Sly