I am 65 year old male. I have kind of tinittus problem for last 7-8 years in my left ear. Initially there was small ringing noise. I took complamina and other medicines to improve blood circulation. The problem subsided for some period after that. Last year I had to undergo angioplasty operation and after that I have to take daily statin/ecosprin and blood pressure tablet. For last 6 months the problem of hissing sound has suddenly increased. I can actually hear a rhythmatic sound related to my pulse. Please advice.