TL:DR : 2 boys were talking shit about someone right behind be and I can't help but think they were referring to me.

So recently my school had us watch a play on substance abuse (doesn't really matter) but before the play started I heard 2 guys behind me saying stuff like "I didn't know she did anything besides be ugly and fat" now I am not conventionally attractive but I'm not conventionally ugly either besides being 4 lbs overweight and some acne. While I doubt they would talk shit about me right behind me for some reason, but that day we did voting for class officers for this year and I'm running for treasurer. I just can't get it out of my head they might have been talking about me. I've never really talked to either of them besides going back and forth with one of them last year in our English class, but I'm a massive nerd (marching band, coding club, dungeons and dragons when I can) idk why it's messing with me so much I just have this pit in my stomach and need to put this out there.