He is usually very hyper,but now he won't play or do much,has diarrea and has been throwing up,he is usually very active but now he just not interested!

How long has this been going on?
Did he eat something? Is he the kind of dog that would?

You need to call your vet. This could be serious, if not life threatening.

Please get him to the vet ASAP. There are emergency vets open on Sundays. If your vet is closed, they will probably have an emergency number on their recording. If not look up an emergency animal hospital in your area. Try an ice cube, maybe he'll lick it to get some fluid in him. Has your pup completed their vaccinations?

Is he drinking?

Dehydration can be fatal. Call the vet.

Get him to the vet asap. While you're waiting, give him pedialyte to help prevent dehydration.

This is not a cure, just something to help until you get him to the vet.