Well, if it's not one thing with this dog, it's another, and it's my own fault for saying he was doing better 
Tonight the dogs were playing and Tucker tried to take Milo's toy. Milo gave him a little nip, nothing hurtful or remotely bad, just a little putting him in his place. Tucker gave Milo his space and went underneath the dining room table where he likes to lay. A few minutes later Tucker started howling super loud and non-stop. My husband picked him up. He would not open his eyes and his tongue was sticking out. His body was limp except for his front paws, which were stuck straight out. This went on for about 3 minutes and then stopped. All the while we were trying to find any kind of injury or identify the source of distress, but there were none. When it was over, he wouldn't open his eyes for a few minutes, but then he did, only it was like he was exhausted and couldn't keep them open. He did eat two of his little treats and went pee, but otherwise he has been hard asleep. Does this sound like a seizure?? What would cause him to have a seizure out of the clear blue sky?? Could Milo have scared him?? Could he be traumatized from taking a trip to Petsmart tonight (even though he did not act afraid at all there)? I'm so confused. I'm going to call the vet in the morning but wondered if any of you had any experience with something like this. Thanks in advance!
Tonight the dogs were playing and Tucker tried to take Milo's toy. Milo gave him a little nip, nothing hurtful or remotely bad, just a little putting him in his place. Tucker gave Milo his space and went underneath the dining room table where he likes to lay. A few minutes later Tucker started howling super loud and non-stop. My husband picked him up. He would not open his eyes and his tongue was sticking out. His body was limp except for his front paws, which were stuck straight out. This went on for about 3 minutes and then stopped. All the while we were trying to find any kind of injury or identify the source of distress, but there were none. When it was over, he wouldn't open his eyes for a few minutes, but then he did, only it was like he was exhausted and couldn't keep them open. He did eat two of his little treats and went pee, but otherwise he has been hard asleep. Does this sound like a seizure?? What would cause him to have a seizure out of the clear blue sky?? Could Milo have scared him?? Could he be traumatized from taking a trip to Petsmart tonight (even though he did not act afraid at all there)? I'm so confused. I'm going to call the vet in the morning but wondered if any of you had any experience with something like this. Thanks in advance!