She's been bloated and extremely uncomfortable for 5 days now. The vet came out and didn't know why (no diet changes). He said she was old and her rumen isn't working right, most likely. I called again day before yesterday - I asked if simithicone would help, and he said to go ahead and try. Didn't hurt/help. DH has been going out there to help her burp by holding her front end up (per vet's suggestion). Occasional burps, but little relief. So, I have some clean, clear plexi tubing (3/8" ID, 5/8" outter diameter) from work - I suppose we're to carefully stick this up her rear end to allow the gas to escape. I read it happens quickly and provides immediate relief. Has anyone had experience with this proceedure? I'm not sure how far in it will need to go. I will use a KY-type lube. Any suggestions sure would be appreciated! Also, should she be fed anything besides her usual grass/alfalfa hay? She shares her 1/3 acre paddock with 2 other pygmies and 2 mustangs - they all eat the same stuff. Thanks in advance!