I have had dizziness, blurred vision, ringing in left ear only and muscle twitching all over and aching legs; all symptoms are a come and go sort of thing. The symptoms have disappeared for a week or so in the past, but always return. This has gone on for over a year. I have gotten blood tests, testing at an ENT, a CT scan without contrast, an MRI with contrast and an MRI without contrast. Everything came back clear. I have no idea and my doctors have no idea what is wrong. I was wondering if those tests would pick up a acoustic neuroma? If so, does anybody know what could be wrong with me? Any assistance would be greatly appreciated.