Thanks for your advice with my other dog Steve I will let you know what happens there when I have the vet tests done.
My Rottweiler has learned (through other neighbourhood dogs as well as my BC) to fight at the fence and she will run straight down to the fence and launch herself at it. She got to the point where she was standing on top of the fence, ready to go over. I now leave her inside while I'm at work because of this.
Do you have any advice on how to stop her from being interested in the neighbours dogs?