How much does your toddler weigh???

My 15mo old weighs 21lbs and he’s been at that weight for a while.. he doesn’t want to eat much. He’ll take a few bites of his food then throw it off the high chair or play with it or want to get down to run around.. last time I asked the Dr if his weight was normal she said it was.. but that was months ago. I always get comments about how “tiny” he is and my mom is used to much “chubbier” babies so she always comments on how “thin” he is. How much are your toddlers weighing now???

Should I be concerned??

When I was pregnant he was measuring small but was normal health wise.

He was 6lbs 9oz when he was born.

TIA