My injury happened in Feb, so I am not expert on this by any means -- I can relate to your situation. I get cranky really quick, never use to =--my family knows that this is because of the injury NOT because of me really being cranky -- perhaps if you talk to your kids and explain to them on their level that when you yell you really do not mean it, it is the injury that is yelling. Give yourself some grace, your children are stronger than you think -- try to keep the lines of communication open and give yourself some time to heal.