Endometriosis help

Please tell me about your endometriosis diagnosis.  Did you suspect having it before you were seen by a dr or was your diagnosis a surprise?  What were your symptoms?  How was it treated?  My mother had it and I suspect I might, too - my periods are regular but painful and accompanied by spotting before it starts, plus severe nausea, & fatigue.  My periods are very light - I spot for a few days, period for 2 days, and spotting for a day after that.  I only need a panty liner for my 2 days of blood flow.  I also have bladder issues and was diagnosed with possible cystitis because of my painful peeing (but no uti).  I've been TTC for nearly a year and have had 2 early miscarriages.