Looking for Birth Mother in Germany

I'm searching for my birthmother, Karolina Wurdinger. She was born 30 May 1927 in Pressgrund and gave birth to a baby girl on 30 May 1951 in or near Weiden, Germany. I was adopted by a military couple in June 1952. Would love to find any relatives that could help. I also have 2 adopted brothers (also not related to each other) that were born in Augsburg on August 12, 1948 and June 19, 1950. Its absolutely daunting how many adoptees are seeking info about their birth...... Good luck to all of you!