> I do sometimes wonder though with all my weird experiences if I am merely the "doer in the body" whereas I have a higher self who is the real "thinker" running things in the background and who has access to the big picture.

Yes, precisely.

There is a classic initiatory text in the Thelemic tradition, Liber LXV, that personifies these different parts of the self. The "doer in the body" is the scribe that wrote the work, which is a dialogue in the scribe's mind between his egoic awareness (V.V.V.V.V, the namesake of the titular character from V for Vendetta) and the background "thinker," Adonai.

There is a lot of vocabulary in this space used to describe the self at very fine levels of detail.