Does anybody else also forgot everything before their major trauma took place?

My major trauma took place around three years ago. Before then there were smaller traumatic experiences, but not as large as what Ive recently experienced. The major trauma also took place in a new location, away from my own country. Now I forgot everything that happened before the traumatic event or any of my experiences back in my home country. I still go back there three months a year but usually felt like a foreigner who is unfamiliar with the surroundings. Is this common in those with PTSD/CPTSD?