My parents act like they were spies or on the run from the FBI or something

I'm just trying to re-order my birth certificate and they have all these aliases and different names.
Omg was i kidnapped? Jesus! They made life so hard for me i swear. I have an aunt ( mom's sister) and we just found out her real name only a few years back, she didn't even know it. Same thing with my mom she had been going by one first name for years and it turned out her first name was something totally different wtf