I was very curious about the technology and looking for improvements with different discomfort areas. As soon as I went in, I got a horrible headache. I thought maybe I needed to drink more water, so I drank more and tried to relax. After leaving and over the next few days the headache has turned into a complete vestibular migraine. I have a condition called semicircular canal dehiscence but it has only ever been bothered by loud noise or pressure changes like flying. I'm guessing the frequency triggered it so anyone with similar problems beware.