Hi, I'm 24 yrs old male with a height of 168 cms and weight of 78 kilos. For the last 2 months i've been having a constant ringing noise in both my ears. Its noticiable only during the absence of external sounds. Its more like a low pitch ringing. My work environment is noise free one completely air conditioned. I've had a hearing test for any loss in hearing and it was negative. I've been taking a course of multi vitamin tablets along with Ginkgo biloba for a while now, but there's no improvement.