I got accidentally headbutted in the chin a few minutes ago while trying to move my spouse in for a kiss. As I was pulling her towards me, she slightly lost her balance and fell forward - whacking me in the chin with her forehead. We were both standing and it was from around a full arm's length away that she traveled. My chin hurts enough that I'm icing it down right now.

Is this enough of an impact to worry about such as possible concussion? Or just an 'everyday impact'?

We're both roughly 150 lbs each; her distance traveled was around 2 feet.