OK, I am definitely not pregnant, so don't even go there 
Every morning I feel really sick: I've never been terribly keen on food in the mornings, but at the moment I often can't face making my sandwiches for lunch or watching the kids eat breakfast. I often gag and retch when I'm cleaning my teeth.
What can it be? Any ideas? Other than this I don't feel ill in any way, and am fairly happy, content, unstressed, etc.