The Eastenders team have already revealed that Stacey is in fact suffering from a rare birth complication called Postpartum Psychosis (PP), which sadly is not all that unusual in women with bipolar disorder (such as poor Stacey).
As someone who has been through it, and come out the other side, I thought I'd gather some thoughts together on the subject.
This is not a dream
Hallucinations (auditory and visual) aren't like having a bad dream or being a bit trippy. There aren't any blurred edges or ghost-like figures or spooky whispers in the dark. Hallucinations were as real as the world around me today: I could see, hear, touch, people who I experienced as completely there. I remember the situations now, just as I remember what I had for dinner last night. I reacted to them as if they were happening to me, right there and then.
This is not a joke
I guess it is possible to have a "benign" or even quite pleasant psychosis. That's not my experience, but it must technically be possible. But psychosis seems to be rooted in trauma and distress. So it manifests itself as brutally and as nastily as the innermost reaches of the brain can conjure up. Unfortunately for me (someone who devoured horror novels as a teenager) my brain could conjure up plenty of darkness and depravity. Worst fears, tortures, humiliations - they were all brought to the surface by psychosis.
This is it.
I fought the psychosis like a woman possessed - because that's what I was. I wasn't going to take it lying down: being suffocated, burnt alive, alone forever, dragged to hell. I fought it. Because I had to. It isn't the psychosis itself that is dangerous (after all, it is all in the head) but it is the real, physical, reaction to it. The natural human instinct to run, fight, escape. Psychotic people have jumped from buildings, thrown themselves onto roads, lashed out at others, become so mentally distressed they make themselves physically sick. This is why PP must be treated as an emergency, with intensive inpatient treatment (ideally in a specialist Mother and Baby Unit).
I was very lucky to have been admitted to the MBU relatively quickly, where I was safe from the physical effects of the illness. The psychosis could run its course under careful clinical supervision, and there was absolutely no risk to my baby (who was being expertly cared for in the ward nursery).
I won't give any spoilers for Eastenders fans, but viewers will need to brace themselves: Stacey's journey will be raw and real and incredibly moving.
For lots more information (as well as support) please see Action on Postpartum Psychosis: www.app-network.org