Deaf Adoptee looking for both family in Ohio and South Korea

Hi! My name is Beth, also known as Songae Nam which was my birth name. I was born on March 19, 1985 in South Korea and got sick so I had a open heart surgery shortly after and then, got adopted to a family in Ohio. For some reason, they gave me up when I was about a year old, most likely due to my disability (Deafness) I still have no idea to this day as to what have caused my hearing loss so I was re-adopted once again to a Deaf family in Minnesota and has been here ever since then. So, I am on here trying to find some answers since I am now in my 30's and feels ready to get this ball going. If possible, I would like to to find both my adoptive and birth families in Ohio and South Korea..