Can sudden blindness and dizziness upon standing be a panic/anxiety attack?

A doctor that I saw ealier this month thinks so. That it might not be othostatic hypotension.

My dentist canceled all of my appointments until my insurance covers iv sedation.

That’s great as I was terrified about having root cannals, crowns, and cavities and fillings put in.

I would be greatful to be knocked out for everything.