The brain fog

I have so far been diagnosed with PPPD and vestibular migraine. I suspect maybe my neck is involved too since it hurts every day, but no diagnosis other than a mild herniation the doctor didn’t seem to think was serious.

The thing that bothers me is I don’t feel safe driving a car because of the random and sudden brain fog I get. The more I turn my head and move my eyes, then I often get this feeling I was konked on my head, can’t think well, and feel like I suddenly need to nap.

Honestly, what am I supposed to do about this brain fog? I want to drive myself again without wondering if I’m going to be out and suddenly impaired like a drunk driver.

TLDR: brain fog when driving, help?