Is it just the extreme tiredness of having a three month old noisy hungry boy who thinks 5.30 is breakfast time and a 2yr old previously known as a little angel who now pushes all my buttons? She is potty training beautifully apart from the daily turd on the parquet at exactly the same time I'm settling her brother for a nap. I am trying to be smiley, efficient, calm and loving to them both but occasionally find myself, erm, 'raising my voice'. I didn't want to be a shouty mum - what's happened?!