I recently cleaned out my two pacs cage and one of them keeps squeaking. It sounds like someones shoe's squeaking across a wet floor, unlike the deep throaty calls which are usualy heard. They've been in estevation for quite some time, probably close to 8 months to a year. I'm not sure if this is something i should be concerned about, i keep it around 80 degrees with high humidity fresh water and daily mistings. I took both of them out and they appear to be even larger than when they went in and there aren't any abrasions or anything noticeably wrong.... any advice?