A few years back on a construction job site I had to turn off a couple of high pitched fans used to dry drywall mud. The noise seemed to cave my head in(can't explain it any different). Anyway, after a few hours I noticed a ringing in my ears that would not go away. So that was the beginning of my tinnitus. I tried everything to rid myself of it!! I managed to continue to work at drywall taping and I'm guessing after two months or so it dimished to a point I hardly noticed it, and over the past few years it would only rear its ugly face for an instant in time. My thinking was that somehow I had managed to bury it deep in the bowels of my mind. Just after Christmas of 2014 it has come back with a vengeance. I am once again at my wits end. Back in August of 2014 I had a heart attack and have been on Metoprolol. Once the ringing started again I researched the drug and found that one severe side effect was ringing in the ears, so I dropped taking it immediately. The ringing is still in my head. Has anyone experienced the same? And has anyone had the ringing and was rid of it for years and for it to come back? Any response would be appreciated. Bob Saint