EmpressArwen
Firstly, I commend you on distinguishing what you recognised as a deep disturbed state (sympathies there ) being projected into your readings, and when clearer, being able to read more objectively, I've tried to explain those two states a few times in other threads here... with varying success.
Thats a very broad question, so I cant really answer except with 'that depends'.
'Spirits' can be of a good or bad order, helpful or destructive, come to one as a form of superconsciousness or a manifestation during an extreme psychiatric disturbance, they can be honest or deceitful. They dont need a Tarot reading to show up, they can 'arrive' at or 'arise' at any time.
Any that have just shown up seem to be for my sitter, not me, and they all seem loving...I just have to admit it kind of freaks me out to be alone in my room and then bam, someone is standing by me. I cant see them, just feel and sometimes hear them. It's just such an odd feeling, not sure what to make of it.