pingc383 i have stage 4 endo and had absolutely no idea i had it until fs asked me if i get painful periods. I said yes. And he said id say youve got endo. So they did a lap and its everywhere, one ovary was stuck to my uterus wall, he said it was so (i dont know the right word) but it was so "infiltrated" into my bladder and bowel that if he had have tried to excise it, i would have needed a catheter and colostomy bag. So my period pain was the only indication. But i thought that everyone got period pain, so i used to just take naprogesic and that would fix it. I only had pains for about 12 hours on day 1. So, not trying to scare you but i certainly found its possible to have endo without knowing it. Only symptoms were cramping but i didnt realise my period pains were any worse than anyone else, iykwim. I mean, they sell period pain tablets in the shops, so i figured a bit of pain was normal. It was enough to keep me up at night, curled in the foetal position but i didnt need to take time off work and only lasted a day. I have really light 3 day af too.