Endometriosis

I need help. I dont want to share the whole story of me and my menstruation.. but I want to ask a few questions to you ladies with ANY stage endometriosis:

Can you tell me your experience? What is it like for you every month, how did you get diagnosed/when did you realize something is off

The doctors suspect I have endometriosis.. I have started to realized they might be right because of a few symptoms. I feel like I‘m a problem. They have told me I may have endometriosis since 16 but I‘ve been to afraid to ever go get it checked, so I suffered silently. Now I made the appointment, time to get this checked for good 😔