I couldn't just read this & not reply, even though I'm not sure that I've really got any clues.

I second SS Storm - breastfeeding your DD is one of the best things you will ever do for her, and nutrional benefits aside, it's a fantastic way of nurturing your bond with your DD. Well done for sticking with it in the face of what sounds like serious opposition from your family - they are way off the mark with their opinions.

My DS certainly went through a period where he'd smile at "everyone" else except me, and I too had some really sad moments thinking that he didn't like me. But that's really not what they're thinking - they just see us more than anyone else, and they quickly know that we're the ones who will always be there, so they don't have to charm us so much. The pay off will come, especially when you obviously become the one that she looks to for first line of comfort . Which can open a whole other can of worms but that's a story for another time.

Slings can be great solutions for sleeping issues or even unsettled times. For my DS, I also found that keeping to regular patterns for waking/sleeping really helped. Not rigid routines, but I know that I kept an eye on how long he'd been up for - from memory about 1.5 hours at the 3 month mark is what worked for us, and then had a familiar routine for going to bed. When he was really giving me grief with sleep, I'd also cancel everything, and just have a few quiet days at home to get things back on track. Might not be so easy to do this time of year.

Anyway, I hope that your happy girl reappears soon, it's hard to imagine when you're in the middle of it, but most of these tough time pass.