well my 4 month old was in his crib and i nipped in kitchen to get his bottle my 5 year old was on bed beside his crib, she is normally very gentle and kind towards his kisses and cuddles etc.. came back in 4 month old was crying she said she punched him so I have put her to her bed.. but when asked why she said she doesn't know she just felt like punching him has anyone been through this? what should I do I feel really worried and upset that she would do this!