Do I have endometriosis ?

I’ve had my period since I was 9 years old, and now I’m 16. When I first started my cycle it was normal period pains. Fast forward to 7-8th grade mostly 8th I started getting serious period pains I pass out sometimes, I bleed really heavy, and pass large blood clots. My cycle last 8 days. I looked up the symptoms and I have literally all of them. I’m NOT saying I have that, but my period pains aren’t normal compared to other peoples. It could also be dysmenorrhea I’m guessing. My mother also has mild period pains but not as extreme. It could be hereditary? Should I talk to my doctor about it ? When I tell my sister/family members they think I’m “faking it”