I have a dilemma. About 9 years ago I had quadruple bypass surgery. I have been on 81mg of aspirin. The doctor said that there is a possibility that it is causing the problem. He said that if I stopped taking it for two weeks, I would then know. He said that I should discuss it with my cardiologist. I am now looking to buy a white noise machine. When I am outside riding my bike, I hardly hear it if at all.