I've had 4 concussions since 2014. The mood "changes bothered me the most bc my spouse was the affected one. Over the years they have lessened in frequency and intensity. What we did during the hardest time was to agree that I would go to a quiet place where I could just be. That would reorient me and I could join my family again. That might be harder with children, I know. But explain it to them and it might calm things down.
Blessings to you and your family.