I have a dermoid cyst on my left ovary. Don't know what that is? Yano the phrase "I ate my twin in the womb"? That's basically what it is. Dermoid cysts have skin, hair, and even teeth. I've known I had mine since I was about 10 years old (I'm almost 19 now). I've never had complications with it until recently, so my gynecologist ordered a transvaginal ultrasound (literally an ultrasound up there). I'm going in tomorrow to get it done. The cramping from it has been so bad today... I've taken Tylenol to take the pain away, but as soon as the Tylenol wears off, the pain comes back. I'm scared they're going to take me right into surgery tomorrow after the ultrasound... I am so scared...