What does "doesn't feel right" mean?

Native speaker’s answer
Rebecca
"[Something] doesn't feel right" is an expression used when one wants to say that there is something wrong, or when something/a situation feels strange, uncomfortable, or unnatural. In most cases, it's a feeling or emotion and not something that is physical or can be quantified. Ex: I changed my major because it just didn't feel right. Ex: Something doesn't feel right. Is there someone following us?