Hi, so I've been on the pill for three weeks as endometriosis treatment and I take the pills every day. Four days ago I started spotting which later turned into a full blown period. Today at work I was having usual period pain so I took one ibuprofen. Later at work I felt a strange sensation and then I realized there was blood running down my leg (despite wearing a pad). I ran to the bathroom and - sorry for TMI - I noticed I had passed a HUGE clot and a lot of blood. I have clots usually but they are not that big and they are dark. This thing was light brownish and pink. Now, I have a 5x6 cm endometrioma cyst and I was wondering if it could have burst and cause the heavy bleeding and the clot. But I know that if a cyst bursts it is supposed to hurt like hell, and I only have normal dull period pain. Can a cyst burts without causing that much pain? I am trying to figure out if I should see a dr.