Update:
During Wednesday night, at 4:30 a.m., suddenly woke with the ticker feeling like it wanted to escape from within the ribs!
This carried on most of the night and into the morning.
Felt drained and lethargic all day as in me get up and go had got up and fooked off!
Wife frogmarched me to the quackters where they stuck an ECG on which appeared 'normal'.
Saw G.P. Who is most concerned - "could be a minor heart attack" - "if it happens agin dial 999 immediately!"

Signed me off til mid January . . .