I haven't noticed parts beginning to do things that they didn't do in the past. They seem to be the same as they were when I first began realizing they were there.

But yes, I find it surprising, puzzling, and sometimes even a bit scary when a part of me appears and I act so uncharacteristically. I act normal most of the time, except when I get triggered and the other parts show up. Then I can seem very different, and that feels unsafe, because I like to be in control of myself at all times.

What you described sounds like you are starting to have more communication between parts and maybe even integrating a little bit. I could be wrong, though, because I don't know much about integration.