01/09/2025
“Living with chronic lymphocytic leukaemia (CLL) doesn’t interfere with my life, I’m healthy enough.
"I’m maybe a little overly concerned with aches and pains, but other than that, I don’t really have to do anything differently. But I always know that I have cancer, it’s always in the back of my mind.”
Declan Whelan, 57, from Finglas, Dublin, who is sharing his story to mark World CLL Day, started to experience some concerning health issues in 2014.
These included night sweats, sudden but brief spells of temporary blindness, blurred vision and swelling under his armpit. Declan, who was living in Melbourne, Australia at the time, says it took him a few months to decide to see his doctor.
When he did go to see his doctor, he was sent straight to A&E where tests revealed that he had CLL.
The news came as a surprise to Declan, but he was reassured by his oncologist who told him that his cancer was treatable.
“He said the bad news is, it is cancer, but the good news is, it’s not going to kill you. He said of the types of CLL there are, I had the ‘good’ one. That really put me at ease.”
Declan, who moved back to Dublin in March 2018, underwent chemotherapy and participated in a clinical trial shortly after he was diagnosed, which put his cancer into remission. However, in 2019 his cancer returned and he now continues to take medication to manage his condition and gets regular blood tests.
“Every three months, I get bloods done and I take tablets every day," says Declan. "At the moment, I’m doing OK on the tablet that I’m on. But I know that, if and when it stops working, there’s a chance that I may require a bone marrow transplant. However, new advancements are being made all the time, and I am pretty confident about the future.”
To read Declan's story in full, visit cancer.ie/your-stories/declan-whelans-chronic-lymphocytic-leukaemia-story