One simple question

[Eilonnwy]

My answer to the question is this :

I determine what is real and what's not by what I perceive, what I think I perceive, what I believe, and what I feel. My assessment of what's real and what isn't is based on a combination of all of those things. I trust my physical senses, and my sense of logic, and my emotions and intuition.

And to those who have an hallucination, what they perceive, what their emotions are, intuition, makes their hallucinations "feel right" and believe it's true. Do you not see the problem.

Also, this would be a fallacy.
http://en.wikipedia.org/wiki/Appeal_to_emotion