OK... I recently adopted a 20 (yes 20) year old ball python from some friends and he's been doing pretty well... some shedding problem but I think we have fixed those... and today while I was handling him he started making noises... not all the time just every once in a while... a weird sort of squeaking... is he actually wheezing or is this a normal sound they make? Also, his under scales have small faint pink lines down the center of each... is this normal or could my bp be sick? I wanted to check before I freak out and call the vet. Thanks for the help!