My DD1 is fab, happy, has lots of energy and is exhausting! But since I was pregnant last time (last year) she has started wetting herself when she laughs hard, like, hysterical laughing. She potty trained fine, didn't really have any problems before this time, and I think it may have been initially, physological because although happy, she was concerned about the impact a new sibling was going to have on her life. As it turns out, she loves her sister to bits and it is her that is often the source of the hysterical laughter. The problem is, I don't want to stop her laughing but it seems to have become a habit now. I have taken her to the doctor and he has suggested a trip the hospital as there is a team of people who are good at sorting this - could just be pelvic floor exercises. I have also set up a reward chart, but to be honest, it really seems to just depend whether she's had a good laugh or not. Anyone else ever had this??