(SPOILERS) How much brain damage must this girl have gotten?

theGodde said:
Your power is to travel through time by literally leaping into things.
The amount of times she's hit the back of her head. Someone should get a doctor in to calculate how much brain trauma Makoto has suffered by the end of the movie.

Just... my goodness. At least Subaru gets his bodily status reset every time he returns by death. Imagine living with the brain trauma of several weeks worth of "returning by multiple collisions". Forget all the life lessons she learned a long the way, she'd be lucky to even remember her name.