It means your dog should be taken to a vet. It could be broken ribs, internal bleeding or any number of injuries that require professional attention. I hope all goes well.
Sorry for the late reply. I just saw this request. I hope your dog is doing OK and if you ever have to deal with your dog getting hit by a car you might want to read and bookmark my hub on dog shock.
My dogs ribs were broken and caused some swelling on her body also.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.