hello my son is 2.4 yrs old and he hasn't increased any weight since he was 1.5 yrs old. he is 12.5kg. he is an extremely active child. Is it normal?

A. If your child hasn’t gained any weight in this long then that is not healthy because when we look at the current age and weight it is proper in sync which is very good but the weight hasn’t happened in last one and a half years that means it could be due to some nutritional deficient or some another issue with the child it’s better to check with your doctor and start with medication for that