Hello Carol
I am fairly new to Byetta, almost two weeks now, and I am finding the same problem, but until I have lost more weight, I am not too worried about it.
I had spent lots of time tonight making fresh home made chicken broth. Normally love home made soup. Dished it up, took one spoonful, and just couldn't stand the taste. It seemed really sweet, somehow. Asked my husband was anything odd about it, but had guessed by the way he was wolfing it down, that there wasn't !
As this has never happened to me before, I assume it's the byetta. I haven't taken my Metformin tonight, but have had a banana, which is all I could fancy.
Janet