Tracy,

I would say that this is not terribly uncommon. I've heard of this happening to people and also had it happen to myself.

For me, continued resistance to the thoughts along with a good diet and self encouragement were what I needed to get me through. My encouragement was often Biblically-based. It's also important to add that it's nothing to be embarrassed about or to feel guilty about. If we lived in a healthy world with uncorrupted food, untainted/unmodified agriculture, and no toxicity, I believe this would rarely happen.

Hope this helps.