Buzz·Posted on 22 Feb 201619 Things That Won't Make Sense To Non-TwinsSorry, but it's a twin thing.by Jamie JonesBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. The frustration that comes with being known as "the twins". Tap to play GIF Tap to play GIF 2. Having to become your brother's/sister's personal school assistant when they were off ill. View this photo on Instagram 3. Hearing the line "there's no way you're twins!" every time you're introduced to someone new. Tap to play GIF Tap to play GIF 4. And then having someone point out all the differences between you and your sibling. 5. Birthdays growing up meant one thing: Joint birthday parties. View this photo on Instagram 6. Joint birthday cards were a thing too. 7. And in general, being treated as one person. View this photo on Instagram 8. Having someone to spontaneously burst into song with. Tap to play GIF Tap to play GIF 9. Getting annoyed when people believe that you have some kind of psychic ability. 10. But then thinking that you actually might be when something freaky happens. Tap to play GIF Tap to play GIF 11. Although, tbf, you practically can read each other's minds. 12. Always having someone there you can count on. View this photo on Instagram 13. Receiving bizarre texts at all times of the day. 14. Complete with a million inside jokes. Tap to play GIF Tap to play GIF 15. Having an argument and then making up within an hour. 16. And always having someone there to calm you down. Tap to play GIF Tap to play GIF 17. If someone asks you to keep a secret, telling your twin doesn't count, obviously. View this photo on Instagram 18. Having someone to gossip with about the rest of the family. Tap to play GIF Tap to play GIF 19. And finally, having a best friend for life. View this photo on Instagram