Slow motion over the curb

I pulled into a driveway in a 1996 toyota camry to make a u-turn, and I it was not the size I thought it was. While backing out, i dropped off the curb going maybe 3-5mph. There was a clunk as we went over, and we pulled over to inspect it, and there were some fresh scratches on the frame. IF there is any actual dmg to the frame how would it manifest itself in an identifiable way? Is it likely i actually damaged the frame or the alignment? It’s not my car, it’s my fiancee’s, so I need to find out what I can do to determine if I broke it

You might have knocked it out of alignment ( no big deal, one can do that hitting a parking curb or a pothole ) but I am certain you did not hurt the sub-frame.