[OMFG!You'reActuallySmart!]

My friends and I joke and tease each other, although we know not to step over the limits. Perhaps your friends do not realize you're affected especially if you don't tell them. Furthermore, if you continue to hang out with your friends, it implies you're willing to stay with them and the jokes don't bother you. It doesn't mean your friends are bad, rather it shows there is a lack of communication and it's unfair to hold your friends at fault. Try telling them you don't appreciate the jokes or shoot jokes back at them. I'm hesitant to say you're being bullied because your friends probably do not intend on intentionally harming you, although if you want to stick with the label of a bully victim, you're free to do so.