Help, this is the first time I've ever seen my dog like this. She went with the dog walker today for the whole day, because the dog walker was running late so she took her for the second walk. In short, the dog came home at 4:30 (left at 11:30), and about an hour ago she threw up her breakfast AND her dinner and now she's dry heaving, and shaking ... I know her stomach gets upset when she's in the car for too long, and I'm guessing she had a good two hours of riding along picking up dogs today, so I think that's it... but she's really sick, puking yellow stuff, and shaking. Is there anything I should do??? I hate to see her like this!!