OH NO Rebecca I am so sorry and poor baby boy Hobbs. I hate to hear he is sick. I know how you feel - I really do. Murphy had a little bug or somethng yesterday too and threw up 3 times - it scared the crap out of me. They are just so small and fragile to take any chances so I know why you are scared. Just give him tons of love tonight and try to let the stool softner work its magic if he is not better in the AM go back to the Vet for sure. I always keep a bottle of medicine for diarrhea and vomiting near by to give mine if they have an upset tummy. Maybe you can ask the vet if you should carry something like that as well for the future.
Please give him some extra kisses and hugs from his good old aunt Caren!!
I love you baby boy Hobbs - hang in there buddy!!