The good news is, Callum's doing great and growing big and strong. He's still in the 90th percentile for height (27.5"), and 60th percentile for weight (17lbs, 4oz). Dr. Safir commented on how sturdy his thighs and calves are - they're like tree trunks! :) He's (finally!) teething and has a bit of a lazy eye, something I've actually noticed for some time but had forgotten to ask about in earlier visits. I'm glad I remembered this time, since Dr. Safir feels it's strong enough to refer Callum to a pediatric ophthalmologist.
Otherwise all is well! Once Callum's ear infection clears, Dr. Safir wants us to try and work him "out" of his habit of waking up in the middle of the night, since he isn't yet sleeping thru the night completely. We'll see how that goes! I think it's just going to take him longer to grow out of it, similar to his brother.