Why exactly are you so willing to spend all this time capturing video of that poor snake and waffling back and forth about taking it to the vet? If you JUST got the snake and it was like that, wouldn't you IMMEDIATELY contact the breeder or whoever you got it from, since you JUST spent money on an animal that should be healthy, especially after "one week"?
If you really did only get the snake a week ago, did the "breeder" even tell you what size mice they eat etc? From your responses to the posts I have to agree with the general feeling everyone else is getting - that you've had this snake for a while and kept it in bad conditions, and at the last resort want to get some attention/sympathy or a miracle cure on these message boards. If you are really concerned about the snake, WHY isn't it at the vet? If you just got the snake, you would be able to easily prove what's wrong with it by taking it to the vet, take that info to the seller/breeder and get your money back etc.
You may have other pets, but
"a vield chameleon, leopard gecko, 12 baby snapping turtles, a hose gecko, anole, and a garter snake. 16 tarantulas, 12 mantids, 2 giant millipedes, 12 phasmids, and a timneh parrot"
... are NOT boas. None of these animals are vaguely like a rainbow boa in care requirements. To be so cocky to say that you "think you know how to take care of pets" just because you OWN others is pretty ignorant.
I have two cats and a dog, and when I was thinking of buying a snake would NEVER have assumed that my experiences with my cats and dog would make me a good snake keeper, and researched my BUTT off before buying one.
What, did you get this snake for free, keep it for awhile and now that it's dying, you don't want to spend money on a vet? Too bad more people aren't more educated about what healthy snakes requirements are and what they look/behave like - I'm sure if you had a dehydrated, starved cat, some of your buddies or whoever would comment to you about it.
So, if you're still sticking to your story of "i just got it a week ago" - please do enlighten us with the name of the store/business/breeder you obtained the snake from so that we can all avoid doing business with them.
Or just post another morbid video. And ask AGAIN if we all would tell you if we think it should still go to the vet. And go out to the roadside and poke some roadkill with a stick while you're at it.