Well its not flu I currently have, but one of these dreaded cold viruses. Was scheduled to go flying Tuesday, and did not. It was a great day here, and as I looked forlornly upward, feeling like s***, was glad I stayed on the ground.
As well as the symptoms listed above, I find my concentration goes off, and the whole exercise, flying, becomes stressful, the opposite of what it is supposed to do.
Also, is it not noted somewhere, that flying, or driving for that matter, under certain medicines, is very much not advised.