Sorry if the title was a little ambiguous/ odd but I wasn't quite sure what to put. Also, sorry if this is in the wrong place. I've got a problem and I need some suggestions. My protagonist Mona is a rebel in the midde of a world run by a totilarian/ dictatory type government (similar to Hunger Games). Anyway, she's about 19 but has been running from enemy forces since she was about 14, with her mother and younger brother Danny. Her mother was shot when Mona was about 17 and this has had a big impact on her psyche because she watched it happen. She's been responsible for Danny and hasn't had time to slow down and grieve or anything and she's now severley depressed. Here's the thing - She also has hallucinations (visual and auditory) about her mother dying. I don't want her to have schizophrenia and I don't know whether there is such as thing as guilt induced halluciantions, so I've been writing as if she's addicted to a kind of drug. I've got a scene where Mona, Danny and their 'group' are in a sewer. They're running from enemy forces as their temporary base was just discovered, so they need to get away quickly. These sewers are dangerous and filled with loads of monsters that could attack, and the darkness is supposed to add to the fear factor/ confusion. This is where the reader finds out about the hallucinations, and they would hint at her past. It would also help with plot development as I'm quite near the begining of the story, and it would also start some other sub - plots. So I really, really want to keep the scene. So Mona starts having hallucinations, and the group is generally split up for a while whilst this happens, and Danny goes missing (which they'll only realise once they're out). However, Mona is smart enough to know that taking drugs now would be a stupid idea because they're in danger. I was wondering if anyone had some suggestions on how the hallucinations would start up? I thought that there might be a way for someone to have hallucinations even if they haven't recently taken the drug... is that even possible?