[sharonL]

Yes dogs can get the stomach flu and everything you have said is the symptoms of it, they can also react this way if they got into something they should not have, either way it will run course in 24 hours to 3 days.  Keep hydrated and watch for the stool to firm.  Sometimes they will also have an intestional bacteria that goes along with it and that will sometimes need med's to get rid of it.  Metronidazole is the most common used.