I'm sorry if there are threads already about this but just out of interest how much does your toddler weigh.
My youngest dd 2 and a half ( born in the march) is just over 25 pound, she is very lively and has so much energy and always on the move, she eats lots, but...she is very slim. She was 6lb 9oz born, she's not long had her check and she's running just under 25th centile. I do worry alot to be fair but she well and happy.