Can anyone suggest what might be causing this very occasional problem with my 6 year old lab cross?
A few weeks ago he was charging around and play fighting with our other lab when he suddenly collapsed, screaming in agony and holding his front left leg out sideways. At first he wouldn't put any weight on it but after 10 minutes started limping. After half an hour he was running around normally.
We're staying with relatives at the moment and came in to find he'd knocked a chair over in his (successful) attempt to get at the bin. And he had the same thing with his leg - holding it out sideways and not weight bearing. Again it's worn off fairly quickly.
Any suggestions? I'll take him to our vet when we get home but I'm wondering if anyone has any idea what the problem might be?