Is anybody else afraid of getting "actually" diagnosed?

I think it's fairly obvious. I'm basically a functional human but as I've grown up and gotten older I think it's become pretty straightforward that I likely am an aspie. My parents were pretty clueless and never would have thought of such things when I was growing up but my cousin has it. I'm just kind of petrified to actually get diagnosed with any kind of asd designation. I'm not sure why. I'm kind of afraid of being pegged into a box like that. Curious if this kind of fear is irrational? Does it matter at the end of the day?