I can't understand what your saying "So I believe in the end it wasn't in that was killing her"???
It sounds to me like she is just about dead? Why havent you made a apointment this morning or taken her in Emergency? Nobody needs common sense to think this Snake might be suffering.. Snakes dont gurgle water, soaking and moving her around will surely stress her more & push her over the edge if she hasnt died yet. What ever she has you can almost Guarantee the rest of your snakes have now too