Hey guys this is my best buddy PJ he is about 10 -11 yrs old and he's doing it a bit tough at the moment he has got this thing attacking the muscles around his mouth which is stopping him from fully opening his jaw its apparently fairly common in dogs around his age so please keep an eye on your dogs cause its treatable if caught early but also while they were doing xrays they found a shadow on his lung which could be cancer. he is having a ct scan tomorrow of his jaw and chest area to determine the best treatment for him but it looks like we caught it early as its very small so hopefully he will be ok just thought I would share this as the dogs suffer no pain with the jaw problem my wife picked it up cause she is always throwing the ball and he would chase it and couldn't pick it up