defective bearded dragon

[ohh_kristina]

My bearded dragon, Amelia, has been very healthy up until about a week ago. Well, actually, she isn't growing very fast either. She acts like her equalibrium is out of wack. She walks all side ways/********-like and when she goes to catch food, she misses for the first couple of tries and then finally gets the cricket. She eats lots of greens and I dust her crickets. Whats the deal? She is 3 months old and only 7 inches long. I don't understand. Should I take her to the vet? Am I doing something wrong? Her basking spot is turned up to 90 and the cool side ranges from 83-86 throughout the day. Also, should I contact the breeder that I got her from and let them know? I dont know how many of you believe the tail break theory..but she has a tail break. I don't know if that has anything to do with it. Thanks.