Dispute about my heritage

A couple people seem to always say that I'm not really Jamaican, but I really am. They honestly don't know what hey're talking about. So here's the rundown. My parents were born and raised in Jamaica. I myself was born in Philadelphia but later moved back to Jamaica a while later where I was raise till about age 6. We moved to the US because of a birth injury that I recieved here that needed to be treated so that my arm pretty much didn't go dead. I'm a citizen there and here. I've been back one time since and I'm going again next month. So some people who love to open their mouth a little too much always seem to dispute the fact that I acually am a Jamaican. I live in a hous where my mother constantly speaks like she still is in Jamaica, i hang around Jamaicans all the time, I go to parties filled with Jamaicans, I eat what would be considered Jamaican food, but still, some people still say that I'm not jamaican. I also pretty much know everything there is to know about Jamaica. So what do you think?