Should I be worried? DD (15wk) has spent about 35 - 45mins in total (sometimes up to 2 hours in an evening!) feeding from both breasts for a while now but yesterday she seemed reluctant to feed after about 10 - 15 mins and refused second breast, and she is still at it today. She comes off happy and doesn't seem hungry again for about 3 hours, didn't sleep any differently, still filling nappies, so I'm a bit perplexed. I fed DS for 13 months so I'm not a complete beginner at bf but he just slowly dwindled down to fast feeding as he got more efficient - certainly not overnight. I know they're all different, but this has surprised me.
Any advice/reassurance, anyone?