Born in Otsu, Japan, 1950 Eriko Amano

My birth mother, Japanese, Matsue Amano is now deceased, and so are my adoptive parents. I would like to know if anyone knows someone who was in the military stationed in Otsu, Japan, around 1949. I was born 6-28-50, adopted 1955. I lived with my B-mother until the adoption, and was never permitted to ask any questions or speak to anyone about the adoption. I've always felt something was "missing"... I would like to find someone that might be related somehow. It would be awesome to have cousins, sisters, brothers, etc....Thanks for having this available!