yeah she has 2 cagemates with her but im not sure if it was them or herself who did it. she has a wheel, she has plenty of toys and i make them forage often and there was nothing that could have stressed her out to do that i dont think, no big changes or anything. the only thing i could think of is the fireworks for 4th of july but ive had her for years and never had this problem. im going to be working on making them more toys probably though to help out if it is boredom, im just not sure what it could have been