I normally do not use plural form, if I do I am having alot of stress and dissociating alot more than normal.
But at the peak of my stressful time I could not help but use plural. I did it without even knowing it. I was flickering like a candle in the wind and not knowing which was dominant when. That was just prior to my Diagnosis.
I do not know if that helps at all...just my experience.
But i am normally aware of most of the activities. However, there ahve been numerous times that I lost time....sigh...the first time I ahve openly admitted that...