Hello, I am a 17 year old girl and I have been experiencing left side abdominal pain and I feel it in the back as well. The pain is very dull and consistent but can be sharp as well occasionally, and it wraps around my side as well. I went to the ER last night and my urine and blood results were normal and there was nothing on the ultrasound I had. I'm still in lots of pain, with other symptoms like left side abdominal swelling, extreme nausea and headaches, dizzy, and fatigue. I feel as if it is in my ovary. What could it be? Ps. I've already had appendicitis and I've had ovarian cyst on the right ovary.