I don't want to be in this world without my son. I'll have a smile on my face when I die, so be happy for me

Brit Wendy set to end it all today... alone in clinic

- BY LUCY THORNTON

A HEALTHY British mum aged just 56 is today set to take her own life at a controversial Swiss assisted dying clinic following the death of her only son.

Grieving Wendy Duffy said she cannot live in a world without Marcus, 23, who died tragically four years ago.

She has spent a year planning her death - at a cost of £10,000 - after facing a panel of experts including psychiatrists ahead of the one-way trip to the Pegasos clinic in Basel.

She has written letters to her loved ones and chosen her son's T-shirt as her deathbed outfit because it smells of him.

She has even picked the music - Lady Gaga and Bruno Mars singing Die With A Smile - which is the last thing she will ever hear. Wendy said: "I can't wait", revealing she started a digital countdown on her phone once she got approval from the clinic late last year.

The former care worker from the West Midlands told the Daily Mail: "I've seen death a million times. I've sat with so many people as they've gone. I've seen nice deaths, horrible deaths. I want a nice, gentle one."

Despite years of therapy, the loss of Marcus is just too much. Wendy - who has tried to take her own life - said: "I don't care about anything any more. I exist. I don't live. When Marcus died, I died too, inside. On my deathbed I'll wear his T-shirt, which still smells of him."