A 3 year old is smart enough to draw attention by performing acts like these. What you need to know is whether he does the same for his favourite food as well. Are his demands for the foods he loves are being turned down as he prefers something less nutritious ? If you see a marked change in his behaviour on the arrival of his preferred food, you have the diagnosis in front of you.
Secondly, a child who continues to have problems even during sleep can not feign a disorder. Is the excessive sleep during day time ? Does he have a disturbed night sleep ?
These are pointers towards an underlying behavioural disorder. Since his problem will affect his intake and result in weight loss
, he needs to be seen by a Pediatrician
with immediate effect.
Provided he is otherwise fine and there are no other complaints, you can be allay your anxiety