I was cleaning my snake's tank tonight and when I took him/her/vet-cannot-decide/Indiana out for a quick inspection, I found Indiana's vent to be puffy to the touch with an accompanying pink streak up and down the surrounding area.

http://img.photobucket.com/albums/v3...artattack1.jpg
http://img.photobucket.com/albums/v3...artattack2.jpg
http://img.photobucket.com/albums/v3...artattack3.jpg
http://img.photobucket.com/albums/v3...artattack4.jpg

Sorry for the super bad photos. I futzed around with the colors in photoshop to best represent the right discoloration of his scales. Indy just did NOT want to hold still for me, and when I tightened my hold around his bottom half? Liquid popped out of his vent and all over my poor photo-taking mother (which was both horrifying and hilarious). I am relatively sure this WASN'T a musking, despite Indy's obvious displeasure at being handled in an uncomfortable position, as neither of us noticed any unpleasant smell with it. After this expulsion, the puffiness of his vent went down noticeably. It is now mostly just discolored.

I attempted to palpitate the extremely pissed bugger and felt a few lumps. I'm unsure if this is a still-digesting meal (he was last fed on Saturday) or feces waiting to be passed. Indiana usually eats like a horse, but has only been having two of his three usual mice the past couple of feedings. Last week he took only one. His bowel movements have still been regular and healthy, and he remains active in the late evenings.

I've investigated for mites, but have found zero evidence in his scales or the tank. When I take him to the vet on Monday (all local exotic animal veterinary offices are closed on the weekends fffff), I'll obviously have this confirmed, along with checking for respiratory disease, etc.

Indiana was born under a private breeder back in 2007. He was probed by the breeder and considered male, but my vet has labeled him as undetermined. I've never been that interested in my snake's gender since I have no intention of ever breeding him, but could the vent be reacting to ovulation? Is my he finally a definite she? Or did he somehow cut the inside of his rectum and start an infection?

I HAVE NO IDEA GUYS please give me some peace of mind to last me through the weekend.