My son is 3 years old. He only drinks milk or mango juice. no solid foods at all.I have tried different foods with different colors, styles everything and still no outcome. whenever I takes foods, he plays hide and seeks and never even look at the foods. its like he is scared of eating and chewing but he can eat junk foods without any issue or chocklates. no solid foods means nothing at all. he don't even sit for eating food. what should I do?