Casualty spoilers: Nightmare for David as he struggles with his mental health

Tough times for David (Picture: BBC)Tonight’s Casualty has a strong mental health focus, as nurse David Hide (Jason Durr) is shown struggling to cope with his bipolar symptoms.
This is partly due to the arrival in the ED of a patient who is in severe distress due to his own mental health issues.
As David attempts to use his own experience and coping techniques to help his patient, it brings up some memories and feelings that he’s tried to suppress.
Will he be able to hold things toge