Wow, I feel your pain Ameline! My flooding got so bad to the point where I could not live a normal life. Theraphy and medication have been my lifeline. The ssri I take blunts the memories and flooding, to make life manageable.
Having a good support system helps, but I suggest seeking therapy to help your brain( and in some cases body) makes sense of somethings, especially trigger seeking behavior. In some cases you might be surprised.