There are actually several different types of schizophrenia, each with it's own set of symptoms. You might want to check out some of the literature put out by the National Institutes of Health and check what you're feeling with their symptom lists. One thing to remember though is that if your perception of reality starts to change, you should definitely make said change very clear to your t and psychiatrist. A number of mental health issues can cause fairly rapid and universal changes in self-perception, thoughts, and feelings. If you can keep a mood journal and document symptoms and feelings from day to day, you could show that to your psychiatrist and t as evidence that they should take you seriously. I've had times where I felt like I was losing touch with my real self. I also struggle with fairly serious self-doubt and other self-perception issues in addition to my other mental health issues, so please don't feel that you have to go through this alone. Has anything happened in your life that might correlate with the onset of the symptoms you're describing?