No, there's nothing wrong with it. I didn't get hired for a job once because the interviewer said I was nervous during the interview, when I didn't think I was. Turned out it was for the best that I didn't get hired. Nervousness is not fun but it deserves no criticism from anybody else.

Well, you need to find a way to confront your fear and move on. I know that is easier to say than do especially after a traumatic experience as you describe. But, random strangers will never give you the benefit of the doubt. The best thing to do is to just use each encounter you have as practise to improve and not try to justify your nervousness. Failure is an option as long as you keep moving on to the next encounter. That nervousness is understandable, but it's also holding you back.

Perhaps you could consult a licensed doctor/physician or psychologist/psychiatrist for feedback, advice, counsel.