@lucasgloves
Hi Lucas,
hopefully I can help you with my recent experiences. I most likely suffer from depersonalization, too, having my lowpoint last year and, at the moment, getting better by the day. As it turns out, I've blocked out parts of my sensory input by hypertensing muscles throughout my body. The most severe symptom (or maybe just the most easily noticable one) is a decline in quality of sight but hearing, taste, smell and touch are also affected. Thus, the first step I would redommend you to take is to look for any big tensions you have at the moment.