In my experience most young children repeat themselves over and over, it can get irritating ,do you answer her each time ?Distraction works or going onto another subject once you have answered her question ,it doesn't mean there is anything wrong' with her. The banging her head, children are tough very often they bash themselves and say nothing..in my opinion both these issues are normal but if there is concern run it by the doctor Good luck
Hi. How old is your grandaughter?? It is amazing how resilient little ones can be! My husband and I say that all the time. Some of the falls, bumps and boo boo's my kids endure would send me crying or to the hospital! Our boys just jump right back up most of the time. So, it is hard to say if what you describe is abnormal or not. Some kids do have an underresponsive nervous system and they don't feel pain like the rest of us and that can end up being dangerous down the road. Pain response tells us to stop doing something that hurts---- we need that in order to not create serious injury.
As to the repeating herself-------- does she communicate normally overall?? Does she respond to comands for example? Can she express herself, seem to understand people? Can she articulate words? There is a wide range of 'normal' with speech in toddlers so it would help to know where she is at overall besides just the repeating.
Does she trip a lot by the way??