If you have a good snake vet, I would venture to guess that they may be able to tell you what's going on with your snake so you can put the guesswork and worries aside. It may very well be nothing, it could be a minor thing, or it could be a life threatening condition...but that's not something you're likely to find here because I don't think there are many qualified herp vets on hand. It's obviously something that has caused you enough concern to post a thread and video on it, so just knowing, in of itself, will have an impact...maybe not on your snake, but definitely on you.