The average weight for a boy of 28 months is 13kg and height 89cm. You can easily see that your son's wihght and height are far below the average;9th and 2nd percentile respectively.With him actually losing weight this is of great concern.He needs to be followed up regularly by a paediatric gastroenterologist and a dietician with experience in this field.If he is still not talking by 30 months it would be a good idea to take him to see a speech therapist.
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