FTM here with a silly question- my little guy is 12 weeks today. He was born 7 lb 13 oz dropped to 6 lb 8 oz due to tongue tie. He is exclusively breastfed and growing like a weed .... I mean he was just comfortably in 3 month clothes like two weeks ago and nothing with the number 3 on it fits anymore. He is now in 6 month sleepers and fits well in clothes. Is it possible for babes to be getting too big too fast?!