Woman mistakenly thought allergic reaction signalled strange cancer diagnosis – Welsh woman Melinda Nelson, 35, discovered rare one-in-a-million cancer after facial swelling post-triathlon. 24cm tumour found on adrenal gland after tests for suspected allergies came back normal. Surgery, chemotherapy, and immunotherapy follow-up for spreading cancer as Melinda remains hopeful. Co-founded Adrenal Cure Collective for awareness and support.