We took toodles on an hour walk on saturday morning and when got back he was limping slightly, so i check him other for cuts, thorns, swelling etc and nothing so thought would check on him later and headed out to get my errands done. By the time i got back 3 hours later he was not walking on it at all just hopping around. Double checked he again, feeling both back legs to compare one against the other and moving it around to see if it caused him any irritation and he didn't seem bothered, so double checked with dad to see what he thought if i should take him to emergency vet. Dad said wait and see how it goes as he doesn't appear to be in pain. Sunday morning he was still limping but putting foot down every now and then and then by sunday afternoon he was running round on it fine, though i didn't take him for a walk as thought best give him a bit of rest. Has anyone else experienced this, as he seems fine now, do you know what causes it?