All the labs came back fine

And ruled out Luke having any sort of serious metabolic disorder, which really we never thought he had. But at least now we have assured his pediatrician, and ourselves, that for the time being it is okay that he is growing slower. Our approach for the coming months will be the same as it has been all along: Keep him close to his Momma, feed him whenever he is hungry, and cherish all these sweet days because someday he will grow up!