Dd is now almost 13 months and has been drinking formula happily since 6 months old. A few weeks before her 1st birthday, I started mixing her bottles with Rachels Dairy organic full fat milk. Her sleeping became a bit disturbed and so I switched back to formula for the last bottle and used cows milk during the day. The other day, I used cows milk again for last bottle and she woke up crying 2 hours after going to bed - unconsoleable and I gave a few ounces of formula and some camomile drops and she went back to sleep for the night. I'm just wondering whether anyone else has had this? Is it just a coincidence or what? I also do think she's teeting a lot at the moment.