OMG, I just read this! So sorry this happened to you, glad you're feeling a bit better, and I do hope that you don't hit that max out of pocket!

While my own face plant 2 years ago at work (that lead to the knee surgery) broke my nose somehow I avoiding doing any damage to teeth of jaw and looking back am unsure how I was that fortunate. Even my broken nose wasn't traumatic - though my face looked really bad for a bit.

Hopefully the child's parents will look after her more in the future and pay close attention to your neck for a bit. My mtb crash induced significant neck injury took several days to so any symptoms (ok, there were other hurting bits taking my attention away from my neck), but if you've not had any by now then you've hopefully missed that bullet as well. Relax, take care of yourself, and keep us posted.