Knock+Fall=Bump

I received a call from school that Juliane had an accident. According to her teacher, after the computer lesson, Juliane went under the table to check if she dropped her stationery under the table. Her classmate, not seeing Juliane, pushed in the chair which knocked into Juliane and caused her to fall forward against a protruding metal piece under the table. A huge bump appeared on her forehead in between her eyes. The teacher used an ice-pack to try to reduce the swelling but it was really evident. 
I brought her to see the doctor and the doc said she is really lucky because just a little lower, Juliane would have broken her nose bridge. That's too close for comfort! :S Juliane was given an ointment to apply on her bump. I was told that the swelling would take a few days to go down and that I should monitor Juliane to see if she feels giddy, nauseous; if there is sudden lethargy; if she has headaches; ... for the next 24 hour period.
When at home, Juliane said she was tired and took a nap. However, after an hour's nap, I couldn't wake her up and she usually wakes up promptly at the first call. As "difficulty to awaken" is one symptom to look out for, I panicked for a moment! Thank goodness, after a few more tries, she finally woke up but seemed a bit dazed. I asked her a few questions and she was able to answer them correctly. Phew. Maybe she was really just exhausted after her "eventful" day in school.
I hope that Juliane will be less accident-prone. Not too much to ask, right?