Snickers has had a few problems with her back right leg over the past few years. When she was about 4 (she's 10 now) she got kicked by another horse right below her hock and had to have surgery to remove a bone chip. The other day I had her turned out in an outdoor arena which is lined with turnouts on one side. I heard a horse scream so I ran over just in time to see Snickers standing with that same leg completely off the ground. She saw me and took off running around and while it looked sore, I saw no cuts or anything. I stayed with her from half an hour and saw no swelling and she wasn't limping on it so I gave her some Bute and put her back in her stall.
That was on Sunday and I have ridden her twice since then with no apparent problems. Today her fetlock looked a little swollen, but again she wasn't limping so I took her out and lunged her some (video below). After working it out a little the swelling seemed to go down. I tried to see a hitch in her step but all I noticed is that she swished her tail when I asked her to lope to the right, and started off on the wrong back lead when loping to the left.
Maybe I am just paranoid, but I took this video in case someone could see something I couldn't!