So very sorry to hear that Keisha had died from bloat.

Bloat is one of the scariest things for me as an owner of two GSDs. On my fridge, I have posted the symptoms of bloat and the emergency vet's phone number. I have Gas X tablets in the medicine cabinet. I am always worried that either of mine may be struck by this deadly affliction. Here are some theories and thoughts on bloat from the GSD bb GSD bb bloat research