She's fine. I had one drop off my neck onto concrete and give herself a good scare a couple years ago, and then she hissed at me every time I picked her up for a year after that.
But a 3 foot fall is generally not a big deal: I have a het pied that keep charging off the kitchen table because he's decided that's the fastest way down. Usually they have pretty good control over any fall that's within 50% of their length.
If she's acting normal, then she's okay.