The medications prescribed are spot on for an infection that is gram Negative and The calcium Glubionate, is used for MBD. The husbandry is excellent, especially using an MVB bulb. Although they do need to be changed once a year because just like the Florescent tubes they do loose potency.
What concerns me is that this has come on so rapidly, it sound more like an infection in the spinal cord or some pressure on the spinal cord whether it is from inflammation from an injury, a tumor on one of the organs, a blockage putting pressure on the spinal cord area. To see if it may be a blockage and if we can get it to pass please try a little baby food prunes as a food. You can feed any way you can get her to eat it. Once she has them place her in a warm soak and make it deep enough where she can touch with her feet, but you can try and get her to paddle or swim. The exercising of the legs even if you move them is important to help keep the muscles from loosing mass and atrophying. While in the soak, please gently massage the abdomen from snout to vent. This should promote a good stool.
The gaping may be the temps in the enclosure or it may be from the antibiotic. Some animals are sensitive to medications and can have some reactions.
I would have her re examined by a reptile specialist. I am going to give you a link to Herp Vets in NM: http://www.arav.org/find-a-vet/#NewMexico or
I think further testing is needed. I would not feed any more high chitin foods like Super Worms which are also high in fat content. I suggest for prey Dubia roaches, silk worms, or phoenix worms. As far as getting the veggies down you can use a fruit baby food like a salad dressing which works well. Even the crickets are high in chitin. over a year old I go to an 80% Veggie diet and 20% live prey.
A Fecal sample should be done before treating for parasites, since the medications can kill off gut flora and be dehydrating. Please let me know if you have further questions. My goal is to give you 100% Excellent service. Joan