Brian Reay explained on 21/09/2017 :
I have any annual 'MOT' at my GP surgery. They offered to check the meter I
use at home if I took it in at the next check up. Without being rude, I
suspect you fall into the age bracket to qualify for the same (free) 'MOT'
check up, kill two birds with one stone- so to speak. They do a blood test,
pee in a jar test, BP, a few other things- nothing painful.

Which is exactly what I am going through at the moment, it all began
with a sudden onset of severe vertigo. BP checked and deep concerns
about that. The vertigo issue was pushed onto the back burner, due to
the BP - luckily the vertigo has almost cured itself.