Help, Please, need advice.

I have a little info about my birthmother but not a name, maybe you can tell me if I can do anything with it. [LIST][*]When I was born, June 4, 1987,she was 20, which means she was born in either 1966 or 67[*]She was 4'11 and 110 lbs[*]She had many illness, especially during pregnancies[*]She got he GED in 1986[*]she had three other children whom at the time of my birth were (boy)3 1/2, (boy)2 3/4, and (girl)15 months (the girl was also given up for adoption).[*]She has two sisters, one was two years older than her and the other was my mother's twin.[/LIST] Alot to know yet this seems like it will get me no where, it was all that was in my file. it was left for me after my parents passed away when I was 16. I am only know ready to search.