Recently I boarded my dog for two days . Upon return home I noticed she wouldn’t jump out of car as she usually does. I had to pick her up to get her out of car.. later that night she started pacing and seemed to be uncomfortable.. these symptoms have only continued since this past Sunday... she will jump up on bed/sofa but whins to get down. I tried to pick her up just by her front legs to assist her and she yelled out in pain...she is only 8 years old.. Lab/Pitt mix.. any ideas on what this could be? Vet appointment two days from now..