Pepperoni nipples

Okay so I have this weird insecurity about my nipples I feel like they're too big for my boobs like it's got to the point where I only have sex if the room is cold because my nipples look normal size when they poke out.
When I was younger my boyfriend used to make fun of me about them after we broke up so I think that has a lot to do with why I'm so insecure. But since him guys never made comments about it, it might just be because he was a teenager at the time.
Does anyone else have this insecurity or have had this insecurity does it just go away over time? And do guys even really care?