To any omnisexuals

I'm trying to figure out if I'm an omnisexual , I'm not really familiar with these concepts but I'm trying my best to be more aware..? You could call it , I thought I was pansexual at first but decided omnisexual aligns with me a lot more , to any omni's out there how did you find out you were omni? What made you sure? , also please let me know if anything I said was disrespectful :> I'm still learning