Honor and oneness beloved Lioness
I know a bredren who suffered for years from migraines. Exactly as the I describe, with vomiting and sound and light sensitivity, seeing colors and fogs, and so on.
This is a very long time Italist (20 years at least), the cleanest eating person I know, no alcohol, no sugar, no salt, no processed foods, almost everything raw. It was a big mystery why he would get the migraines.
I always told him USE herb, blaze hard during the feeling that the migraine is coming on. He had previously been avoiding herb during that time, but he found the herb really would help, that he would not vomit if he smoked early enough in the onset.
In the past 18 months or so he has started drinking Kombucha mushroom drinks. They are slightly alcoholic but also have vitamin B12 which is a difficult one to get for vegan Ital eaters, and the deficiency of which causes severe neurological problems. The kombucha seems to have helped a great deal because the migraines have not returned in this time.
If it is possible, I would try the kombucha and see if that can help the I... Without knowing about the I eating habits I am not sure if it is what the I need, but even meat eaters have been known to be B12 deficient because sometimes the system is not absorbing the amounts as it should. So it may help either way.
Healing and love to the I sister from my heart to yours.