Thank you for the generous and kind response.
Part of me wonders if, like alexithymia[1], aphantasia, anauralia[2] and anendophasia[3], there exists the inability to recognize one's own conscious experience. We would never know.
1. https://en.wikipedia.org/wiki/Alexithymia
It seems more likely when you put it that way. Thanks for the interesting links regardless. Deeper cuts than the average aphantasia reference.