Has anyone else got these symptoms?

Just been talking to my sister in law who lives several hundred miles away and we have identical symptoms.
Nausea, and a feeling of being sick hungry all the time. Improved by eating. Goes on for months (wind too )
We've both had brushes with cancer but all clear now and have had all the tests for this problem and nothing shows up.
So, we are hoping it's a bug and there's a lot of it about.
Anyone?