Yep - agree with everyone here. Totally normal. In fact, your daughter's experience sounds a lot like my own. 20+ bathroom trips, mostly overnight. Breakfast and lunch finally start making their way out in the evening, starting the BM train, so to speak.
It took time, healing, probiotics, and eventually fiber (Meta wafers) to drop things. Most of the 20+ trips were due to gas, honestly, and once that cleared up my # of trips to the bathroom dropped. But it was slow improvement for over a year. And months with the initial takedown issues. I was pretty tired during that time.
Tell her to hang in there. It will most likely get better with time!
Steve