A lot of things can upset the sensitive vestibular system of someone with a vestibular disorder.
If you have migraines, one of the most often recommended remedies is sleep.
I have run in the same brand and model of shoes since I was in high school. That first pair was the 15th iteration of the Nike Pegasus. To date myself, the Nike Pegasus 35 just released this year.
A few weeks before I even received my Shady Rays, I noticed a friend of mine rocking them at a baseball game. I didn't even have to ask what he thought of them: