Wow I'm really glad someone posted this because I'm having a horrible time with this. Though my "motor running" sound in my ears is constant
The weird thing is, yesterday the motor sound was in my left ear all day long--it would be intermitten it might go on for an hour non stop and then it'll be gone and then it'd come right back. It was driving me so insane because I thought it was something running in my house--the refridgerator or something! So I drove out on to a dirt road and pulled over, turned off my car stuck my head out the window and sure enough the motor sound was still there--it wasn't something in the house it had to be the ears!
I thought mine was medicine related because I'm on blood pressure meds. I went to my family doc today to check my ears and she couldnt find anything...she thought it was medicine related too. But with this new information posted here I may do a little more research and see if this might be the case for me. It really is the most annoying sound, vibration, noise...It worries me even! I want to get to the bottom of it.