T making noise??

My newest freind this lil T that has been identified as possibly a mexican red-rump has been doing something strange! She is small and from her last molt is apparently female but when she tries to bite me (when I try to feed her) or when she digs she makes this squeaky noise! I have heard of mature males making sounds for mating but never a juvenile female making sounds when digging/biting!!

Could something be wrong with Fang? I am worried about her!

Pictures of her in her tank and her 10 gal (yes she has a water dish its a part of the hide she has! And she has much more open space to dig in than it looks like!!) As always husbandry advice is accepted and any explanations for this weird behavior are appreciated!