tests revealed the 24-year-old was suffering hodgkin lymphoma - cancer of the lymphatic system .
the most common symptom of hodgkin lymphoma is one or more painless swellings in the neck , armpit or groin .
eve addison , now 24 , developed a strange swelling in her collarbone whenever she drank gin and assumed she must have an allergy .
but she became worried when switching brands failed to help - and she developed night sweats and a rash .