Up to that point, there was no public evidence or information to suggest that Kate Winslet was traumatized by filming the movie Titanic.
Actors sometimes go through emotionally intense experiences while filming certain scenes, especially in emotionally charged films like Titanic. However, it's important to remember that actors are professionals, and they have methods and techniques to cope with the emotional demands of their roles. They also have access to support systems, including on-set counselors or therapists, to help them process any difficult emotions that may arise during filming.
It is crucial to respect the privacy of actors and not make assumptions about their personal experiences without reliable information. If there have been any developments or updates regarding this topic , I would not be aware of them. I recommend checking more recent and credible sources for the latest information.