Searching For My Birth Mother - Adopted from the Philippines

Hello.I am searching for my birth mother.I was found in perfect health on the steps of a medical doctor in Lucena in the Philippines shortly after my birth.They set my date of birth to 30/06-1987, I am now a 35 years old man.From there I was sent to an orphanage in Manila, and later adopted to Norway.I am interested in hearing from anyone who may have any helpful information, how I can get in touch with her, or if she still exist.Kind regards.