Hi Everyone, out 8 month female gsd has been chasing her tail non stop for the past 4 days (she is still intact). We haven't changed any thing in her routine and she was 100% fine before this. Every time she is out of her kennel area and free in the house she immediately begins to chase her tail. We have tried toys to distract her from this but to no avail. Is this something normal for this age, or should we take a trip to the vet.