What counts as a hallucination?

Hallucination: This is hearing or seeing something others in the room will not see or hear even if you instruct them to look and listen. This is not the same as an illusion - that involves mistaking something for something else and can be a normal lapse of attention of a leap to a conclusion. If in doubt find a psychiatrist or psychologist and share the experience, and ask.

Hallucinations: Hallucinations are psychotic processes. Psychosis means the patient is getting external stimuli from the environment through one or more of his or her five senses, that does not objectively exist. In other words there are auditory,visual, olfactory, gustatory, and tactile hallucinations that can be experienced by the patient. Auditory hallucinations, however, are the most common.