My son is 14mo and he's on day 5 of a terrible cold. He was doing great with fluids until yesterday. He drank maybe 2 sippy cups of milk, refuses anything else, and has had some fevers. I haven't even hit 7 full diapers in the past 24hrs, everytime I did "change" him, he had next to nothing in his diaper. Should I take him to his pediatrician or go straight to the ER? Pic for attention