I am sorry you are dealing with this difficult issue, and I can imagine how heartbreaking and frightening it must be. Sounds like you have done everything typically recommended: health check and training.
An inherent disposition problem might be the problem.
Does he have the opportunity to get outdoors much? Sounds like taking him out might be handful, but if he spends most of his time indoors in a relatively small area, that may make things worse.
I hope someone with more expertise here will be able to give you some suggestions on how best to proceed.
__________________ Kristin, Max and Teddy  |