Yes, it can still be considered a hallucination even if you are aware that it is not real. Hallucinations are defined as sensory experiences (seeing, hearing, feeling, tasting, or smelling something) that seem real but occur in the absence of an external stimulus. In other words, a hallucination is a perception that occurs without any actual sensory input from the external world.
There are different types of hallucinations, such as auditory hallucinations (hearing voices or sounds), visual hallucinations (seeing things that aren't there), tactile hallucinations (feeling sensations on the skin without any cause), olfactory hallucinations (smelling odors that don't exist), and gustatory hallucinations (tasting things that aren't present).
When someone is aware that their sensory experiences are not based in reality, it is referred to as insight into the hallucination. Having insight into a hallucination means that the person understands that what they are perceiving is not actually happening in the external world. However, even with insight, the hallucination itself is still considered a perceptual disturbance and can be distressing or disruptive to the individual's life.
Hallucinations are commonly associated with conditions like schizophrenia, but they can also occur in other medical and psychiatric conditions, as well as in certain circumstances such as drug use or withdrawal. If you or someone you know is experiencing hallucinations, regardless of whether there is insight into their nature, it's essential to seek help from a qualified medical or mental health professional for evaluation and appropriate management.