If the MD said he is fine from his check-up then I would not worry. I suggest you give him a daily chewable child multi-vitamin so he gets all the vitamins and minerals he needs at those times when he is not eating well. Thank you for your question.
That's great! That will give him extra calories and protein to help stabilize his weight and grow. Thank you for the feedback.
No - thank you! this helps me (mentally) I also have him started on the Carnation instant breakfast drink which he loves. Thanks again!!!