The other night, my 13 months old daughter started screaming like crazy, I ran and picked her up and tried to walk around the room to soothe her, and I accidentally slipped while holding her and she fell on the floor. As I was slipping, I fell knee first, and at that point in that microsecond, I realized I do not want to fall on my daughter, so I let her go and put my arms in front of me. So I do not think she fell from two meters, but I did hear a bang as if a tiny head touched the floor (wooden floor without a rug). She started crying a lot after this for about 3 to 4 minutes, and then she went back to sleep. The next day I looked for visible signs, no vomiting, no cross eyes, but she did feel just a bit less playful and more lethargic than usual. I know that this is not an easy answer, and I am not just looking for reassurance. But my question basically is, what are the chances that the trauma she had to her head was a TBI (traumatic brain injury)? Is it possible that this will have long-lasting effects on her learning skills or abilities?