Luke, who works in tech and lives in Cardiff, said the first symptom was a "dull ache" in the lymph node of his upper inner right thigh which started in about June 2020.
A man thought he had a cold but was diagnosed with stage 4 cancer. When Luke Cowan, 26, was diagnosed with the cancer, doctors gave him only a 30% chance of survival.
Luke, who works and lives in Cardiff, said the first sign of the disease was a “dull pain” in his upper right thigh. The man developed the symptom in June 2020.