This is my 4th and biggest baby by far, I never had problems with my smaller babies latching but this one is 2days old and I have barely been able to get any milk into him. Just wondering if might be just the first few days since he has more fat than the others did? Might sound stupid but I'm getting desperate. Also he seems to be in pain all the time? He cries and cries and then he drops a smelly fart, then quiets down again, this happens very often, day or night.