no it is not possible for memories that have been integrated (remembered and put together) back into the conscious level of thinking to be not integrated (not remembered and put together). short of a physical accident which results in amnesia or your brain cells being damaged or killed you will always remember that that abuse situation that you now remember and no longer act out happened and what happened.
You may be remembering an abuse situation (or a piece of memory that has not been recovered before) that has not yet been remembered something that had to do with some sort of system. it doesn't necessarily mean your mental alters system. suddenly having the urge to draw a sytstem could be a solar system, a plumbing system any kind of system that you were working on during your time of abuse.
If you have remembered your core (the first abuse memory that ever happened to you, which is the youngest memory of abuse that marks the very first time that you mentally dissociated to the point where your memories have been stored at the unconscious level of thinking and later upon being triggered are acted out) then you have reached the end of your unremembered pieces of memories.
If t hat did not happen then you may have more memory pieces that are now coming into your awareness (this is called being co consciousness - being aware of both the present and what is going on around you at the same time as being aware of the memory that is replaying in your mind. If this is what it is you are safe. because as you have already found out by controling the urge to draw the memory of a system with co consciousness comes being able to control your behavior. Great job in doing that.

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Hang in there.