**** is now 7.5 mos and as of last Wednesday morning was doing fine being a playful rambunctious puppy. I think it was sometime Wednesday, something happened and I really have no clue what it could have been. I'm thinking he may have made an attempt to escape the fence in the back yard and hurt himself in the act. Wednesday evening we went to the park and did our normal walk and I really never noticed anything out of the norm as far as walking or gait changes, but when we finished he came inside and just laid around all stretched out which is strange. Thursday, more of the same unusual laziness and lack of motivation to move much but not acting like he was in any kind of severe pain or anything. Thursday night, we went to intermediate obedience and he struggled to jump in the back seat of my 4runner which normally is a cinch for him. He did fine at obedience, but noticed instead of sitting, he favored the down position with his hind legs more out to the side rather than directly underneath him. I spoke with his trainer who is certified behaviorist, trainer etc... yes, I know, not a DMV. She suggested maybe just putting him on kennel rest over the weekend and observing him and see if he gets any better. She has been around him enough and did not think he was acting too much different and told me he could be having growing pains as she observed his growth plates are all still wide open. Well, as of this am he was not better so I took him to the vet and dropped him off for him to observe and do some testing to see if he can find out what the issue may be. I am very much aware of wobblers, but the onset from my understanding is generally not until 4 or 5 yrs from my understanding. My last dobie had HD and artritis, but was not diagnosed until age 9. With that said, ****'s pedigree is strong with health tested dogs and so I am obviously concerned. Can anyone shed any light that may have experienced something similar with a younger pup and found out it was only something trivial that was easily overcome? I would rather not be reprimanded for waiting 4 days to take him to the vet if possible and was doing what was suggested from someone I trust.