she will sweety. It wont last forever.

No, i dont think co-sleeping makes an ounce of difference. I would put it down to the teething or another developmental milestone (eg. crawling, walking etc) as DD always had a few crappy nights when she was learning something new.

Also.. mayb have a look at her solids diet.. has something changed? eg... u and her.

It has been abit warmer the past few weeks... so mayb u + Dh + hot weather + sweating etc may be bothering her.. in turn, making her hot which means shes will BF more.

HTH