I think I have Endometriosis? What are the signs?

I noticed lately with my past few cycles, I'd have bad bloating and cramps to the point I can't even move at some points even with heating pads. I also saw that my bleeding once in awhile had heavy cramps and a super slow start. Today started my newest cycle, and I felt cramps around like 2pm but didn't start actually bleeding until like 11pm.

I was reading about endometriosis, and I saw that heavy periods can be a symptom. I usually start off heavy with my cycles.

Would what I have been experiencing lately be a part of this?

If there's anyone out there with endometriosis, can you give a synopsis of your experience before you found out?

Thanks in advance!