Flight or fight response is totally normal, but its massively amplified with PTSD as it is as though, to me at least, your body goes into protect mode before the brain has a chance to process what the threat actually is.
If you are triggered easily by other people, then moving to a foreign country, with a completely different culture, with a girlfriend who doesnt appear to understand what you are going through might not be the best idea. As Eve says above, you cant outrun you, trust me, I tried many many times. Its a relief to think of escaping, your brain will tell you that it will all be exciting and new, and for a short time, it probably will be, but that doesnt last forever. The honeymoon period of anything in life has a shelf life. I think its more important to identify your triggers before you go to another country as that alone may trigger further issues.
If you are triggered easily by other people, then moving to a foreign country, with a completely different culture, with a girlfriend who doesnt appear to understand what you are going through might not be the best idea. As Eve says above, you cant outrun you, trust me, I tried many many times. Its a relief to think of escaping, your brain will tell you that it will all be exciting and new, and for a short time, it probably will be, but that doesnt last forever. The honeymoon period of anything in life has a shelf life. I think its more important to identify your triggers before you go to another country as that alone may trigger further issues.