Poor Ella.
I have a bunny that has gone into stasis twice since I adopted him last summer. It's very scary when they get gassy like that, won't eat or poo. I have no experience with piggies in stasis, but it sure sounds like Ella has the same symtoms as my Harvey bunn had.
We had Harvey on Simethicone and Cisapride. The Cisapride was a life saver. It really helped to get Harvey "going" again. I doubt he would have recovered on the Simethicone alone.
Sending continued good thoughts for Ella.