Lately, I've been hearing my 'gu having little sniffles, they're not like, long chains of wet sneezes, just little tiny single sniffles/sneezes, sometimes I hear it when she's burrowed during the night & asleep. Her enclosure isn't too wet, I mist every so often, and just rolled the mulch with some water to keep it more moist in there. She's in a 5 foot tank. Could it be that the tank is too dry, or too wet? Should I be worried?