seven yr old daughter keeps getting pain in her back

[cutekids]

my seven year old daughter has been complaining of having pain in the bottom of her back since Monday. (we went to a party on Sunday night and I know some of the bigger girls were giving my kids piggy backs). She's able to do handstands and cartwheels but she can't jump or skip. Does this sound like a pulled muscle or something else?

[Milliways]

Is she alright now? If able to do handstands can't be too serious I hope.