Thank you, Stewart.... although still not 100%, I'm feeling a hell of a lot better than I was a week past Monday and, at my own insistence, have since received a letter from my GP explaining the hospital's findings in a bit more detail.
Unknown to myself, I had been rather anaemic; therefore, in order to determine the cause of some rectal bleeding, the hospital is arranging for me to have a sigmoidoscopyas an outpatient.