Nope. No no no no nope.
“Unconscious,” in the context of synonyms for the subconscious, refers to the unconscious part of the mind—the part we’re not conscious of. A noun. Ana is not unconscious. In that context, it would be an adjective.
Ana hasn’t fainted. E.L’s use of ‘subconscious’ doesn’t make the book confusing, just inaccurate. E.L. simply doesn’t know what a lot of words mean.