Great advice 'Diva'
If I'm ever unsure about any of my dogs well-being, I take their temp first then have a systems check...gums, pulse rate, complete scan of the body for anything foreign or bites and simply watch water, food intake and watch for, out of the ordinary movement or behavior, never panic in these situations, unless you know for certain its something crucial...snake bite, bloat etc
Good luck with your baby, talk to your breeder today and keep us posted...a second vets opinion on the first diagnosis would be recommended...and the only 'real' way they can know for sure if its something more sinister is by having x-rays done.