You'll have to bear with me, because I'm going to try and explain this the best way I can. I don't know if I'm having hallucinations or not. How would I even know if I'm having them?

So I have a few questions that I'm hoping someone might be able to answer for me.

1.) What is a visual hallucination? and what does an attack feel like, in your own words (not some text book answer)
2.) What is an audial hallucination?

If I'm having a visual hallucination, would my eyes be "seeing" something, or would my brain be "seeing" something (as in, would my eyes be physically reacting to an external stimuli even though there's nothing really there, or would just the part of my brain responsible for interpreting the stimuli be reacting?) Would I even know I'm hallucinating?

What about the audial hallucinations? How could I distinguish them from "inner dialogue"?