In TV and film, schizophrenia is often portrayed as simply a person seeing other people who aren't really there. And, while this can be the case for some people, the reality of this illness is far from so straightforward. Schizophrenia can present a wide variety of symptoms and can have a devastating impact on those it affects.
One person with a family history of schizophrenia took to Reddit to find out more about the moment people with schizophrenia knew something wasn't right, by asking: "People that have been diagnosed with schizophrenia, what was the first time you noticed something wasn't quite right?"
Below are a selection of some of the responses that people gave, which will hopefully give an insight into the reality of this illness and the effects it can have.