I met a lady named Mona Grubbs a few years ago at a Navy reunion for a group of men who flew into hurricanes.. Her husband was a member and a friend of a man I was there with. The four of us went out for dinner and she actually told me she had given up a baby in or around her home town of Winchester VA - she then left and moved to Virginia Beach where she met her present husband. He is now out of the Navy and retired. She was working for either the city of Va Bch or that county I think maybe public works dept.. I Know there is a picture of her on line and will send you the link taken at that reunion. She talked very open so I am almost 100% she is your birth mom.
Let me know if I can help.. I can send you the name of the organization etc..
my e mail is blonddeemn@gmail.com