My 17 week old DS (BF) has become a major pooper again after a gradual reduction in the number of dirty nappies after about 12 weeks, to the point where he was doing one a day until about three weeks ago. He has now started having a dirty nappy with every feed again, and even through the night. I suppose about 8-9 dirty nappies in 24 hours. Never just a wet one. There has been the odd bright green one but they are mostly "golden" . He hasn't done night time ones since he was really small until now. He does however feed every three hours during the night (yawn). I've not had him weighed in about 5 or 6 weeks. I don't understand all the physiology of nappies but does this increased "behaviour" sound normal?