Diziness with heavy head. Of breath!

I am suffering from dizziness along with blocked nose and ear. Whenever I am travelling I feel pressure beside the ear and head and the neck got stiff. I have done ear test which suggests right peripheral vestibular leison. There is negative pressure in both ear. One ENT specialist suggested that I have DNS and sinus and it's putting pressure in my vestibular system. I have done brain MRI where there is no remarkable problem is written. Only remarkable statement is "few discrete t2 flair hyperintensities seen in the subcortial area of fronto paretal lobe". As per neurologist it's vestibular migraine. I have tried both migraine and sinus medicines for 2 month each. Currently I am taking Alaspan m twice, xylomist 0.1 nasal spray thrice daily with steam and zevert md24 and tryptomer at night. It's been a long time I am facing this difficulty and it's affecting my daily life.i can't go outside alone as am feeling always anxious due to the dizziness and rapid heart rate with short of breath