Oddly enough Jock, the plumber is due round this week to check the boiler so I'll mention this.
As for me, the headaches are few and far between - still feel a bit lightheaded on occasion - and not every day it seems. The cough is still lurking but again nowhere near as bad. Still, might go back to the doc to find out why this "viral infection" is still around. Bear in mind, I was not examined - my wife was and we had the exact same symptoms.
Cheers
HR