Hi. I'm very concerned about this matter. I started having derealization 9 months ago after severe stress. At first I didn't know what it was so I did many tests including brain MRI which showed Chiari malformation (a cerebellum deformation) and two pineal cysts in my pineal gland. Two montsh ago I realized I suffered from dr and that 90% of my symptomps were caused by it but I'm worried that my deformation is causing it, is that possible?