Baby won't settle from 4pm - 10pm
This is the fourth afternoon of this - DS who is 6 weeks old won't settle after his late afternoon feed (breast fed baby). If we put him down whether to play or sleep he cries. He wants to be held constantly during this time and also wants to go on and off the breast for this time - yes, on and off the breast for 5 hours - my nipples feel like they are going to fall off by the third hour - I burst into tears this afternoon as I was at my wits end - I couldn't take the pain but at the same time I didn't want to deny him his one comfort when he is so over tired. I know it has nothing to do with actually being hungry. His typical feeds are 20 minutes and I have plenty of milk and he is steadily gaining weight at a rapid pace from his 20 minute feeds - he also has plenty of wet nappies throughout the day.
He settles pretty easily in the morning and he typically falls asleep right after all feeds other than the first morning feed. He also settles OK during his night feeds other than if he ends up wanting a 5 or 6 am feed - then I have to take him into bed with me and he'll sleep (he'll also sleep if he lies on my husband). All other times, we can plop him in his cradle and all is OK.
Is this a normal phase for 6 weeks old (note, he was 4 weeks early so he's only 2.5 weeks past his due date)? Any advice as if this goes on and on, I'm going to have to consider giving him a dummy which I really don't want to do for a number of reasons.
PS - I don't think it is wind as I give him infacol which seems to bring up the burps pretty quickly
Thanks