Hmmmm - if you feel sure that you haven't had a relapse, then you're probably right! It manifests differently and isn't really the same process (as you know) Alters are generally organized and bright (not unlike you!) - I've never heard of DID presenting itself in a way that is consistent with psychosis, so I believe you're in the clear. There's no need to tell your current psychiatrist if you don't want to. The only thing I would keep in mind is that drugs that enhance a dissociative effect are generally not good for people with active DID (klonopin, xanax, etc).
I have to say that I am very sorry to hear that you suffered abuse at the hands of anyone in my profession. What a terrible tragedy. I feel for you and for the countless others this person likely affected. You are quite the survivor and I'm so happy that you were able to move forward and onward. You've obviously taken a proactive stance in healing yourself and that is inspirational. I hope you're proud of what you've accomplished thus far and don't let a setback get you down! :)