Let me give a little background....Max is almost 10. He's been the perfect dog for the almost 2 years I've had him. He doesn't mark, and he would hold all day in his kennel. A few months ago he started having accidents in his kennel- so unlike him. I've had him checked and no bacteria in his urine. They put him on amoxicillin anyways, but that made him get diarrhea pretty bad. Well it got better over time but now he's had 2 accidents while sleeping in our bed. He's neutered. Sometimes he has to go out more often. Any ideas? Thanks.