I am sure there has been an instance, where I have felt that way. It is usually normal to feel like an outsider sometimes. Behavioral habits when meeting people or introducing yourself can be naturally hesitant or shy. There has been a time I have felt judged on my appearance, as If I look like I am from a certain place or part of a different group. Sometimes people can perceive me as a negative view, It seems normal in our society today.
Most people judge others without recognizing it, almost without intention. I believe it is part of our nature to see others differently, even if you are an accepting person. There will always be another person that is “better” than you, but you cannot necessarily control others and how they think of you. There is always an opportunity to change the image of yourself, but naturally, humans judge without really thinking about it.