[MargaretR]

I have had blood tests a few years ago.
The only thing wrong with me was said to be 'high cholesterol'.
My research on the web has convinced me that there is nothing ominous about having 'high cholesterol'.

When it comes to the crunch, many of these tests are excuses to convince you that you need expensive drugs, or to monitor the effects of drugs already prescribed.

Blood tests are a useful tool, as long as you don't just accept a doc's interpretation of them.