classic33
Leg End Member
It's not just the volume, but the frequency of the noise being produced.Does that explain why I feel slightly dizzy and tired?
The noise was outside, but sounded very loud indoors, and just as noisy when I was in the back garden.
Include in that how long you're having to listen to it.
Frequencies at either end of the scale are what can cause the headaches. You may not be able to hear them, but they're still there. They're also the ones that can do the most damage, because you can't hear them and don't realise they are there.
Was it roadworks outside causing the problem.