I have a GSP, after hunting Last Saturday, and upon returning home , I noticed him with a bit of a limp. The next day he for the most part would walk on three legs. My wife and I looked at his foot and can' t seem to find anthing in it. That was a week ago, he still seems to favor the foot a bit, but still rips around, running & jumping, he seems to walk flat footed on the one foot instead of on his toes as usual. Any Ideas? Do you think he should see the vet ? Thanks for your input