Having recently gone through something similar, I'm thinking of you and here if you need anything. The worst part about xrays is that they're pretty much inconclusive if it's anything but metal. If it's a partial obstruction, barium can help move things along (it did for Bojie 2.5yrs ago), as well as help them visualize things better. Which is always a positive. When you get her back from the barium series, just know it's a bit messy, white and thick, so her bowel movements will look like that for the first few times until she gets it out of her system. Don't let it alarm you. I also refused exploratory surgery until Bojies clinical signs worsened. It was the absolute last resort for me, until he clearly exhibited signs that it was time. You're doing everything I would do, keep us posted!