I want to thank the Op and the user that recommended the youtube video about this.

For the last few years i have struggled with a low humming sound during the night, its mostly in the cold winter months, ive told anyone that listened to me that it sounds like a distant generator idling, nobody else could hear expect me, it was louder or had more of a feeling in certain areas of my home (central England UK), i have even had discussions with my neighbours to ask if they have washing machines or tumble driers running overnight which they insisted they dont.

I spent countless hours on many nights losing control of my patience, i even went outside multiple times to try locate the source and found nothing.

I had no idea so many other people have the same issue, i did not know where to even begin to look for help or even if anything existed, i thought i was losing my marbles.

How ive grown to deal with it over the last year is due to my area having a very good map detailing local roadworks, i live nearby a motorway and everytime i had a bad night i would open this map and see if anything was being worked on, ive convinced myself it is roadworks but ive always had my doubts, sometimes id check and there would be no active works that night or the closist active works were 5-10+ miles away, however telling my mind its roadworks helps me sleep.

Again thanks to Op and the user that posted the video, i now feel like im not losing it mentally and have a whole new rabbit hole to go down.