Ds2 was born alot lighter than his brother, almost 2lbs lighter. I know they are two different babies but I can't help but compare and it is very worrying. Since he was born on Thursday he has lost alot of weight and I can't do anything about it. He has barely opened his eyes for more than a few seconds at a time since his birth and I can't wake him for a feed. He sleeps all the time and when he does feed its just for a minute or two every 3-4 hours. I'm so engorged I'm having to express all the time. The midwife didn't seem concerned as I said that his nappies were brown/yellow and loose. But hes so tiny I can't help but worry about it. Anyone else experience this?