All I know about Bulgaria is that a nod of the head means "no", and a shake from side to side means agreement. I know that there are resorts such as Golden Sands, Sunny Beach and the cities of Varna, Sofia and Burgas.
I know this from the Internet, because for some reason my memory has erased all memories of a very long trip that was about 25 years ago, or maybe it just didn't take anything into itself as unnecessary.
Bulgaria is definitely not on the list of priority places to return, but to bring back memories and understand where I lived and what I did there would be nice. I think it's really possible to do this in a hypnosis session, if I would treat it normally.