[Ellie May]

I wouldn't be at all comfortable with white gums and vomiting. He is probably dehydrated by now, and gum color change can be some very dangerous things. If he isn't holding down water and his gums don't come back to a normal pink color immediately, it's best to go in tonight. The problem with assessing gum color though is everybody's interpretation is slightly different when talking about shades of pink. So hopefully you have looked before and can compare.