I'll echo what everyone else has said especially what Bogertophis said above. I used a glass tank for me BP for almost a year, and still use glass enclosures for other snakes and lizards. Pictures or at least a description of your set up would help us try to give you a better idea of what your problem may be. Have you blocked off three sides? Is your enclosure in a an area of your house that has heavy foot traffic? Is it in a room where you're constantly up moving around? Remember, we're just big predators to a little BP. As has been said many times before, the world is a scary place when you're a noodle with a head.
Also you mentioned you tried live feeding on the advice of Wilbanks, did you also get your BP from Wilbanks? I know Mike doesn't ship snakes until they're eating consistently for him, so if you did purchase from him I doubt, not saying something isn't wrong health wise, but I doubt there's anything wrong with your snake. I'd look at husbandry first before putting it through the stress of a vet visit.