My 4 year old and 20 month old (both boys) have started fighting a lot recently, probably since our newborn came into the picture. If they’re not watching tv, playing or eating, they’re physically fighting. Although they laugh, it always ends in tears and somebody gets hurt. I know it’s normal for siblings to fight but I’m wondering to what extent is it normal? Should I be getting angry and breaking it up everytime? It’s so exhausting trying to manage a newborn as well. Does anyone else have young kids that are always fighting??