i know he's not a lab, but i was told to repost it here because there are a lot of knowledgeable people here.
here's a link to the original topic.
I would take him in for xrays to check for Hip Dysplasia. Goldens are almost worse than labs with their predisposition for it. Hope it all works out.
I second CYNLABS...take the pup in for xrays...I saw the video...his gait seems a bit off.
<3 01/01/2006-03/18/2017 <3