Medicine and Epley Manoure BPPV virtigo.

On 31st January, i had severe virtigo attack. I visited Medanta hospital and there I was diagnosed BPPV and they did Epley Manoure which reduced my dizziness. They also advised Zervert 8 mg twice a day. I was still getting dizziness, so i again did free follow up consultation next day. There one more Epley manoure was done. Now i am not getting severe virtigo problem. But still getting little dizziness while walking. My questions are: Question1: How many Epley Manoure are required to completely get rid of BPPV? Question 2: Is there any side effect of Zevert 8 mg if i continue it for long time. I am also suffering with Grave hyperthyroid and Atrial fibrillation and taking a lot of bp, thyroid, blood thinner. Question 3 : I am getting tinnitus sound continuously since 31st. How to get rid of sound. Kindly answer all 3 questions