This sounds more like derealization, a symptom of anxiety.
I am surprised that no one mentioned Dissociative Disorder in visiting 2 different doctors. I am not a doctor and don't know your history but I found the following from a website.
Treatment
Since dissociative disorders seem to be triggered as a response to trauma or abuse, treatment for individuals with such a disorder may stress psychotherapy, although a combination of psychopharmacological and psychosocial treatments is often used. Many of the symptoms of dissociative disorders occur with other disorders, such as anxiety and depression, and can be controlled by the same drugs used to treat those disorders. A person in treatment for a dissociative disorder might benefit from antidepressants or antianxiety medication.
Best of luck to you
M