Freaking out a bit about DD (nearly 5yo) who has just started to have horrific night terrors. She got concussed about three weeks ago and that seems to have triggered them? She is absolutely wild during them, screaming in terror and running around the upstairs of the house looking for us. She doesn't have any recollection in the morning but has become anxious going to bed so I think there is some residual memory somewhere in there. Looking for reassurance or to hear other people's experience, concerned that there's something underlying it?