Welcome to SR Chan.
I hope you stay with us - even after the dizziness issue is resolved. This is a wonderful place that got me sober after a lifetime of drinking.
I haven't had a vertigo issue, so can't really help with that. Maybe others will have experience. I'm glad you saw your doctor - but maybe you need to let him know how bad it's become. Very glad you are here seeking a healthy new life. You can do it.