I think it's fascinating how we all seem to end up doing much the same things.
It's even more fun to look back at other people from history, people who grew up way before the advent of Dr. Jekyll and Ms. Hyde, who tried to figure out the same stuff. How to turn that kind of subconscious awareness that something was amiss into a conscious thought, and how to keep it both secret from the outside world and readily accessible when needed. Coz we must have been doing this stuff for hundreds of years, one way or another.
A very solitary and introverted child, Jung was convinced from childhood that he had two personalities, a modern Swiss citizen, and a personality more at home in the eighteenth century. "Personality No. 1," as he termed it, was a typical schoolboy living in the era of the time, while No. 2 was a dignified, authoritative, and influential man from the past. Although Jung was close to both parents, he was rather disappointed in his father's academic approach to faith.
A number of childhood memories inspired many of his later theories. As a boy he carved a tiny mannequin into the end of the wooden ruler from his pupil's pencil case and placed it inside the case. He then added a stone which he had painted into upper and lower halves of, and hid the case in the attic. Periodically he would come back to the manikin, often bringing tiny sheets of paper with messages inscribed on them in his own secret language. This ceremonial act, he later reflected, brought him a feeling of inner peace and security. In later years, he discovered that similarities existed in this memory and the totems of native peoples like the collection of soul-stones near Arlesheim, or the tjurungas of Australia. This, he concluded, was an unconscious ritual that he did not question or understand at the time, but was practised in a strikingly similar way in faraway locations that he as a young boy had no way of consciously knowing about. His theories of psychological archetypes and the collective unconscious were inspired in part by this experience.
Shortly before the end of his first year at the Humanistisches Gymnasium in Basel, at age 12, he was pushed unexpectedly by another boy, which knocked him to the ground so hard that he was for a moment unconscious. The thought then came to him that "now you won't have to go to school any more.". From then on, whenever he started off to school or began homework, he fainted. He remained at home for the next six months until he overheard his father speaking worriedly to a visitor of his future ability to support himself, as they suspected he had epilepsy. With little money in the family, this brought the boy to reality and he realized the need for academic excellence. He immediately went into his father's study and began poring over Latin grammar. He fainted three times, but eventually he overcame the urge and did not faint again. This event, Jung later recalled, "was when I learned what a neurosis is.
Well, obviously at the time no one, not even a 'genius' like that would have the tools to understand, let alone admit to being 'different' like that, but given the kinds of things that happened later on in his life as well, the mental breakdown and writing the 'Liber Novus' etc. I can see him being one of us, or at least someone with more than the average amount of contact with the feminine side in his psyche.