should i get this checked out?

i wasn't born with it. i think it started popping up on my neck when i was 5. i'm 16 now and i've thought it was starting to look weird in the last year. my dad is coming home and i think i'm gonna ask him to take me to the doctor (i don't have insurance rn so he'll have to pay out of pocket) but before that i want to know if there's any nurses or something on here to tell me if i really should get it checked out or if it's normal. i don't want my dad to spend unnecessary money