Just wanted to know whether this problem is normal. My 3 month old dd does will not settle if she has a dirty nappy. She is being breastfeed for the 7am and 6.15pm feeds. The last two nights she has been up at 4.30 and 5.30. I go in and change her then settle her with cooled water and breast milk. Previous to this she was sleeping through until 6-7am. Do I just wait it out until she adjusts her cycle?