United Kingdom, Oct. 5 -- Constance Zimmer secretly battled breast cancer earlier this year.

The 55-year-old actress - who has 18-year-old Colette with husband Russ Lamoureux - was diagnosed with an early form of the disease while promoting her series Love Story in March and she's recalled how the immediate aftermath of getting a call from her doctor was "overwhelming".

She wrote on Instagram: "October is #breastcancerawarenessmonth and I never thought I'd be honoring it with my own story.

"I never thought I'd be honouring it with my own story.

"On March 13th when I was away from home - I heard these words from my doctor over zoom: 'You have DCIS, also referred to as Stage 0 breast cancer.'

"The silence was deafening.

Here I was sur...