I had a laparoscopy 2 weeks ago and have been diagnosed with stage 4 endometriosis. They couldn't do much and only ended up draining a large cyst on my right ovary. I haven't been in any pain until last night. I have a constant dull pain and I get waves of intense pelvic pain. Almost like a burning. I'm not due a period and it not like that pain. Has any one else experienced this or have any idea what it could be?