Feck me mate, I thought I was having all the bad luck with pups. I was right there with ya till the car accident. So sorry to read that, I know how proud of those pups you are.
Right, in a nutshell, your doing everything right BUT you have just answered your own question... Build a run for your kennels, so as your pup don't over do it. What the brain wants to do at that age, with running dogs, the body don't always follow.... You know this, your just covering every base and fair play, I did the same the other week with my pups injury, I knew the score but put a couple of pm's out simply b