‘I suffered every mother’s worst nightmare – this is the one thing I want others to know’

Imogen Tinkler struggles to remember exactly what happened after her eight-week-old daughter went limp in her arms.

“I was feeding her and I looked down, and her lips were grey,” she said. “I knew it didn’t look right. I was in a state of shock, and I just went into muscle memory. I didn’t think.”