Massive it's hard when someone undermines your parenting skills that much, you're doing a great job

Can you try explaining to the other dr's that it is a young child and you are really concerned? Some, if they are decent people will fit kids in because of the potential 'risk' (sorry can't find the right word to explain) to the child's health. Also do you have photos that would show the difference in colour? This might be helpful for the dr as well, and yourself so you can see the difference (ds was jaundice when born but I didn't see it until I was looking at photos itms)

Good luck and I hope you get some positive answers soon