I have a weird feeling about my aunt

My aunt is my dad's sister-in-law, and she's been married to my uncle since I was three. She's ten years younger than him. For a few years now, I've heard my parents saying bad things about her, such as saying that she's a narcissist or manipulative. I don't think that my parents are unreasonable or gossipy people, but they can be pretty biased or quick to dislike someone sometimes. The only reason I couldn't just forget about this is that since I was eleven or so, I've had this strange feeling about my aunt that's been getting stronger as I get older. I feel like she's... judging me or something (maybe that she's fake? That could just be my parents talking though). That she can see exactly what I'm thinking but I don't know what she's thinking at all. I don't know if this has something to do with my parents' opinions about her seeping into my subconscious or if she genuinely just gives me a bad feeling. It's not that I'm unfamiliar with her, because I've known her for eleven years and felt perfectly comfortable with her before the feeling started. I talked to my parents about the feeling, and they said something along the lines of 'your feeling is justified, maybe in a few years you'll see where it's coming from.' I don't want to start distrusting my aunt, because I love her and I enjoy her company, but I don't want to dismiss my feelings either. What do you think? I really need some other people's opinions on this.