Last 2 months, I am having giddiness and imbalance while walking. ( i had same problem ten months ago. That time i was asked take brain MRI. It showed a normal report. But i became normal after a week) . After ten months I got same symptoms. I consulted same nuerologist. He asked to take B12 test. I had 182 which is slightly less. I am taking B12 injection and tablets. I took tablets for vertigo also. They took nerve test for legs. That was also normal. I consulted ENT. He took hearing test that showed normal report. I went to another neurologist for second opinion. He gave nootropil for a month.. But still I am having same problem. Plz guide me what to do. I would be thankful for ever.