Imagine this.

I will try to illustrate what the clicking here is like :-
Imagine there was a metronome somewhere (the device used to keep time when playing the piano) set very fast, if you could find it, you would switch it off as soon as possible, right? Now, imagine that you could not find the metronome, no matter how hard or intensively you searched, and, whenever there are other people there with you, the metronome stops, then, when they leave, it starts up again.
This is how it is for me, 24/7, 365 days, no wonder my behaviour is affected!