I've just spent 3 hours almost constantly breast feeding my 5 week old and he was fussing like mad getting frustrated by the end of that time so I made him up a 4oz bottle which he guzzled down like he was starving. I know breast is best and all that but wtf are my breasts doing while he's feeding that length of time because they surely aren't filling him up. Don't get me wrong I love breast feeding and I know long feeding sessions are normal at this age but I'm just feeling frustrated and sad that I can't give him the satisfactory feed which he really needed.