Signs of concussion in a 2 year old?

My baby was sitting on the toilet and right once i turned my back to turn the water on for her bath she fell on her face on the floor, i picked her up immediately she cried and i gave her water and Tylenol after i asked her is she was ok she said ok, then i asked her who every ones name was and etc and she named everyone name correctly she calmed down had fun in her bath and is walking around fine. I am a first time mom so i'm terrified to let her go to bed, with her talking fine etc does this show that she does not at all have a concussion? or should i still be alert and take her to the dr tomorrow?