I was hoping someone may be able to answer what happened to our 11 year old pit bull, Kitty. She died suddenly this past Saturday, 11/15/14. She was acting normal, and we were going to the mountains to camp for the night. When we arrived, she got out of the truck and roamed as normal. About 15 minutes later she started acting strange. She wanted to get back into the truck. We let her in the back, and she laid very still on the seat. She immediately seemed lethargic and started having labored breathing, and lost control of any motor skills. Her tongue just hung from her mouth. It seemed almost as if she was stunned. I watched her pupils take over her eyes, her breathing slowed, and she was gone within 20 minutes. It is going to hurt for a long time. I guess it would give us some peace to have an idea what happened to her. There was nothing we could do to save her.