Have you read ‘Heal your headache 1-2-3’? My vestibular group on FB is specifically for SCDS, but a lot of them have MAV (migraine associated vertigo aka vestibular migraine). It breaks down the triggers of migraine and medicines/foods, etc. I took it with a grain of salt and agree with 50% of it. PT, dry needling or acupuncture can also help with migraine. Those who have done the diet consistently have great success with their migraines. Knowing triggers and avoiding them also help. Vestibular rehab therapy helps with the vertigo/vestibular symptoms.