My frenchy Dudley has injured his back. This is the 2nd time that this is happened but this time much worse. Since Thursday I've had to take him to the vet twice. He keeps displaying symptoms of pain(shaking, etc). The first time he did this, he was fine with the pain meds and keeping a low key schedule. The vet has him on pain meds and also acepromazine which is a sedative. He has no interest in food and is generally out of it. When I try to get him up (to eat, pee,etc) he won't move much and goes back into shakes. At the vet he displayed great motor skills, walking, not rolling his feet,etc. the vet said he is probably feeling the effects of the "ace," but I am really concerned. Has anyone else had any experience with a painful back injury?