My dog Otis is an almost 10 year old english bulldog/pitbull mix. He's always been kind of a couch potato but he goes nuts when somebody comes to the door. Over the last 3-4 weeks on 3 different occasions he has seen someone pull into the driveway, get all excited barking and such, then about a minute after the person comes into the house he just collapses right where he is. Once in his crate, once on the stairs (thankfully I was right there or he would have fallen down them totally limp) and last night right on the floor in my entryway. He kind of just goes totally limp, breathes hard for a second, then about a minute later he gets up and slowly goes back to normal. In 3-5 minutes he's totally back to normal. I am planning on taking him to the vet next week for a checkup but I don't know if they'll be able to tell me anything unless he does it there. Anyone have any ideas?
