Two souls in one body

That last answer was incorrect. I have two souls in my own body. My twin sister's soul and my soul. My twin sister died before either of us were born, and her soul fled to my body while her body died. Every now and then a heart-shaped mark would appear somewhere on my body, her trying to communicate with me. And one time, right when I put my hand on my leg, I felt a quick bump hit my hand from underneath the skin. Her trying to talk to me, letting me know that she was still there. That whole devil thing the other guy talked about was incorrect. Take the real answer from someone who has two souls.