I developed bilateral vestibular hypofunction in march of this year. It was discovered after treatment for BPPV. I was on nitrofurantoin for a bladder infection at the same time. I had used it in the past for a bladder infection without a problem. I’m told it’s unlikely it caused my BVH. I’m told it is idiopathic. However I am now terrified of all meds. I was also on spironolactone Wellbutrin and synthroid at the time and am also told none of them did it. I use to take Benadryl at night for sleepoften I’m currently weaning off Wellbutrin as I have read it is a 4 in your book. I will try meditation deep breathing instead. I guess I’m asking if I caused this to myself with any of the medications I had taken. Is macrobid ok?