Hello, You have a coil and presently are feeling moody, having night sweats and pain in the legs. You are having a mixture of heavy and light bleeding. You have a history of endometriosis. Coil does have side effects but it varies from person to person. Not all experience side effects. In some, Mirena coils do cause headache, it may cause restlessness and night sweats. You are suggested to get tested for menopause and thyroid conditions as well as it may cause similar symptoms that you have been experiencing. The symptoms also depend on the type of coil you have been using, copper IUD can cause heavier periods and make cramps worse, unlike hormonal forms of birth control. Since you are have endometriosis, bleeding can be heavy. If you are having a lot of discomfort you can talk to your gynecologist or health care provider and get the coil removed. Get clinically examined by a gynecologist, get USG (Uterus) done to confirm endometriosis and fibroid so that treatment can be started at the earliest. Stay away from addictions if any. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician