My name is Suzi and I have adopted a 2 year old male neutered AMBD... His name is Buster he is heartworm positive and Will be going in for the beginning of treatment this Friday. I am curious if anyone has experienced this before. My dog has not shown signs of aggression. However, when he was at the vet they drew his blood and he turned around and bit the vet tech in the face no growls or nothing. The vet tech is going to be ok. She had to have a few stiches. I am having a behaviorist/trainer come over to asses him. However, she wont do it until the heartworm is treated. Because she said his illness could be effecting his personality. This guy is a love and wants to be pet and belly rubs.... likes kids, He does have seperation anxiety and when I leave the apt he wimpers and crys, he does not get destructive. He did nip at my friends poodle when we took them off leash. However, Buster did show signs he did not want to play. Do you think I have major problems with this dog. If someone could let me know if they have experienced any similar issues, I would greatly appreciate it.