I've measured my son, just turned 13 months, and there's a big difference between his height and weight on the growth charts.
Weight: 22.5lbs, 60th percentile
Height: 72cm, 2nd percentile
He looks in proportion to me, so I'm a bit shocked. Is this a cause for concern? I'd ask my health visitor but she's recently retired and I've not been assigned a new one yet.