My baby is broken!

BB

My son who is 1week 6days has been sleeping through the night (well, my night, which has always been about 5 - 6 hours of sleep anyways) for the last week. My doctor isn’t at all worried though, because he’s already on the uphill climb with weight and growth, and he eats like a champ (3 - 4 oz + nursing per his regular feeding times about every three hours. We do bottles of BM at night just to make sure he’s getting a full meal before dozing off. During the day he nurses). But seriously, is this even a real baby?!