Does anyone ever feel like they aren’t autistic enough?

Ik that may sound weird but sometimes I feel like I don’t show my autism much. Like I know I am, but I feel like sometimes I’m faking it.(idk how) I see stuff online targeted towards autistic people, specifically this sweater from a brand online that has like sharks on it and it’s like a communication hoodie and it looks really cool. I feel like im not autistic enough to get it or something. Idk my brain is a mess sometimes lol. Just wondering if others ever feel the same?