Could I be Chosen

All that I could afford was a wish since my parents died and I was adopted by uncle Steve and aunty Kira. My name is Isabella Marie and now I am 17 yrs old. i don't have any friends nor siblings. my family is not so poor and not so rich we are in middle actually. My uncle Steve is an very well know entrepreneur in our locality and my aunty Kira, well she is a housewife. They have never treated me badly and has always acted like my real parents. According to them I was found passed out in front of there backyard and my parents dead mystery was still not solved by police and why I was found in such state was also unsolved puzzle. I don't even remember my life before was aunt and uncle took me in. I mean it's as if someone has erased all my memories and I know it's unbelievable but whenever I try to remember I get this painful headache. Doctor's say I am just shocked and subconsciously blocking myself from pain. I don't know what to believe anymore.