I recently got a chinchilla last December, her name is Zeze (zeh-zeh) and lately she has been acting a little strange. Sometime when she is one my on arm she wraps herself around my arm a bit and starts biting away at it while making slight squeaking noise that doesn't sound like an afraid or defensive sound, not hard thought she tears the skin but not nearly enough to draw blood. I've also seen her lay down flat quite frequently as of late, this is something i rarely saw her to before she always seemed to just sit on her hind legs whenever she sleeps. She seems to be eating normally. I feed her Nutriphase chinchilla formula, natural timothy hay, home filtered water, and usually a daily treat either raisin, pear twig or a raw hazelnut. I'm worried that something may be wrong with her and was wondering what other owners think.