The odd part I dont understand....the noise comes and goes. Mostly at night. but on and off throughout the days, last night was the first night in weeks we didn't hear it. Then it started again this morning It is migrane causing.....

Give a shout to the power company and see what they can do as far as cking transformers, etc.
Cause with the moisture and temp changes of the past few months a Transf going bad can exhibit this hum.
And be prepared for the always exciting transformer blow up !
didn't know bout the expletives in video - sorry

Another possible source may be the recirculating pump in a hot tub. My neighbor kept his hot tub outside and its electric motor running producing a low frequency hum that I could hear 400 feet from my house.

Yep, same here. I only hear it at night when all is still. Took me awhile before I realized what it was. If you listen long enough you will hear it click off.

Hot Tub suspect never thought of that. Good one Scott B !

From what I remember, I was hearing it during the afternoon. Also, I always felt it sounded like it was generated by something electrical. That's why I thought it was from a shop or garage. It was kinda like a giant Tesla coil, but with a lower frequency and no popping or crackling sound.

Exactly, not sure any of the neighbors have hot tubs.... IREA "says" they came out and checked but I never saw them, I have to talk to the supervisor tomorrow to get them to approve an inspection.... crossing fingers!!

Its horrible....and now affecting my work due to having a tough time concentrating and sleeping I need a specialist with this one, anyone have any recommendations?? there has to be a sound detecting gadget or someone who knows how to pinpoint a vibration...

If you're having problems sleeping due to the hum, you might want to check out some sort of white noise machine. It sounds weird, trying to override one noise with another, but it does work.

15/ 20 yrs ago ,I was getting BAD static interference in my 2 way radio, Xcel sent a electronics expert out with a direction noise finder ,, noise was coming from my neighbor kids tropical fish tank, tha air pump on it hadda air pump that was going out ,,,. Kids dad bought a new pump before that one died ...

Could ya list everything you have done, so we can narrow down a better possible solution?

Possibly a large grow operation close by. They use a lot of electricity for their lights. The huge electric draw can cause a hum in the lines. There are a lot of grow operations up there. Any houses close by with all the windows covered or blacked out? A rental that looks deserted?