I agree that I wouldn't read too much into the results of the MMPI. For instance, intelligent people tend to score high on the schizophrenia subscale even though they're not anywhere close to being schizophrenic. I certainly wouldn't let a test like that change how I view myself.

It can be good to look at the test results and ask yourself honestly if it applies to you. But if you decide it doesn't apply to you, ignore it. You know yourself far better than any test.

It's not unusual for people to not see stigma in other people's mental illness but to feel ashamed and bad about their own mental illness. One thing I've worked on in therapy is being as kind to myself as I am to other people.