Think I need help but scared I’m wasting the doctors time..

I have found a 3cm- 4cm bulge at the back of my vigina wall, closest thing to google is that it may be a pelvic organ prolapse but we all know what Googling your symptoms is like... I’m 19 years old with irregular periods and not a clue in the world what a “normal” vigina should look/feel like! Am I just touching my cervix and being dumb or is this something I should be worried about??