DD 19 mo just fell off a chair on to my hard wooden floor. She fell forwards and hit her head. I feel terrible as we had taken the baby set away from the tripp trapp the other day as she kept climbing on to her older brother's tripp trapp and then getting cross when we put her back in hers. What should I be watching for in terms of concussion? She seems okay but am dead worried . Guess will be putting the baby set back on. (Bad mother).