An inspirational woman who has battled lung cancer, breast cancer and is now living with a brain tumour, will be lining up alongside thousands of other woman at the starting line of the Race for Life tomorrow.

Forty-four-year-old Sarah Lee of Beccles, will be completing the 5k challenge at the Norfolk Showground in Norwich with her mum, eldest sister and two friends - and despite spending the last four years in and out of hospital, is determined to jog her way to the finish line.

She said: 'I am making the most of every day and that is why I wanted to do the Race for Life.

'I have wanted to do it for the last few years but I was having treatment or not well enough.

'So I thought I am going to do it this year, raise as much money as I can and just have a good time.'

Mrs Lee was diagnosed with lung cancer in June 2011 after having a chest x-ray for suspected pneumonia. She underwent an operation to remove part of her right lung, followed by four cycles of chemotherapy.

Working at the time at two shops in the town, she went straight back to work, pushing through the tiredness and nausea.

In May 2012 she found a lump under her right arm, and a mammogram and biopsy revealed she had invasive grade 3 breast cancer. She had a mastectomy on her right breast and had all the lymph nodes removed under her arm.

But three days before her operation, things took a turn for the better when Mrs Lee was given the day she had always dreamt of and married her childhood sweetheart Steve in a surprise wedding organised by her mum and husband-to-be. The couple had been together since she was 15.

'We had been engaged for years and years but just hadn't got married,' she said.

'I think after the second diagnosis he realised it was what he really wanted and he knew I had always wanted to get married too.'

Six weeks after the operation Mrs Lee started chemotherapy and this time lost her hair, finger nails, eyebrows, eyelashes and sense of taste.

She said: 'It was really hard but I did work through the first four rounds of chemotherapy wearing a different wig to work every day. The girls never knew what one I would turn up wearing.'

Mrs Lee also had to travel to the Norfolk and Norfolk University Hospital every day for three weeks for radiotherapy.

She returned to work again two weeks after the treatment in March 2013, but just under a year later she had a brain scan following a series of bad headaches.

She was originally told they didn't think the lump was cancerous, but after waiting a few months and following a second scan at Addenbrooke's Hospital, Mrs Lee was given the devastating news that the had grown and the cancer had spread to her brain.

'The tumour is on the left hand side of my brain on my speech strip,' said Mrs Leee. 'They said they couldn't operate because it is too big and because of the position.'

Mrs Lee was put forward for CyberKnife treatment and was referred to St Bartholomew's Hospital in London in November. The tumour has now shrunk by 25pc, but is expected to grow again.

'I haven't asked how long I have got because I don't want to know. But it is incurable,' she said.

'So many women are diagnosed every day and feel like they can't talk about it.

'But I know I'm terminal and I've been fighting for four years and am still fighting and staying positive and I still find something to laugh about every day.'

Mrs Lee is being monitored with brain scans every three months, chest x-rays every six months and mammograms every year, and still works three days a week at Simply Cards in Beccles.

She has received over £400 in donations from customers through a jar on the counter, and has also raised around £300 in sponsorship, which will go to Cancer Research UK.

'The customers have been amazing,' said Mrs Lee. 'A few of them have had me in tears they have been so generous.'

Mrs Lee will be running the course in a pink tutu, pink wig and bunny ears.

Anyone who would like to sponsor her can pop into Simply Cards in Exchange Square and fill out a sponsorship form.