A mom of two opened up about being diagnosed with incurable cancer in her 30s and how she’s lived her life since receiving the news.

Katie Stevenson, from England, described herself as “fit” and “healthy” when she discovered a lump in her breast in 2020. She went on to be diagnosed with cancer, according to a press release by Britain’s East Suffolk and North Essex NHS Foundation Trust.

“On paper there was no reason for me to worry,” Stevenson recalled. “I was 32, young and healthy. There was no reason to think ‘cancer.’ “She underwent scans, which showed that the disease had not spread, and started intensive treatment at Colchester Hospital in Essex, around 70 miles northeast of London. Stevenson underwent a mastectomy, chemotherapy, radiotherapy and immunotherapy, finishing treatment in August 2021.

Less than a year later, she had a seizure while out running.

“I’d fainted before, but this was different. I just knew,” Stevenson said. “I told them to scan my brain and they did.”

Stevenson, who is a mom to Freddie, 13, and Bessie, 11, is currently receiving immunotherapy for her condition.

She has continued to rebuild her life, regaining her driving license and running the London Marathon in 2026.

“At the start of training, I’d lost confidence. I was terrified of being left by myself, even for two minutes, in case I had another seizure,” she said in the release.

Helen Medel-Gonzalez, a specialist physiotherapist in neurological rehabilitation at Colchester Hospital, said that when Stevenson hits a barrier, “she doesn’t sit down and accept it.”

“She gives herself time, finds another way, and continues to push forward,” Medel-Gonzalez said of Stevenson.

“As Katie is a patient with a lifelong condition, we’ll continue to support her and adapt her treatment to what she might be struggling with or if she has a new goal,” she added.

Stevenson described Medel-Gonzalez and the team in the rehab unit as “just amazing.”

Outside of her hospital visits, the mom said she may “squeeze in a half marathon before the year is out.”

“Because for me, a full marathon is definitely a ‘once in a lifetime opportunity,’ ” Stevenson said.

“Right now, it’s time to really focus on growing my business and my family — who have been amazing throughout this,” she added.