Janey,
I wish I could take away your pain. Know at least that here there are many others who know exactly how you are feeling... and there is a certain strength in that. Try to keep in mind that while the pain never totally goes away, it ebbs and flows. You just had a painful reminder that brought that pain to the surface. BTW, I relinquished my daughter 30 years ago this year as well.
Hang in there, and know you are in my thoughts.
Soprano