I beleive I did see some swelling of the joints.
The leg isn't smaller then the other, it's not getting proper circulation. If you look at both you can see the one is discolored and the other one is normal.
Sneezing maybe a good thing, this is what they do in order to clear themselves out. When you say choking, what exactly was happening. When she sat there did she move the leg at all and did it stay crooked? was she able to let it dangle down into the water?