'I was in incredible pain... the doctor said it was just discomfort from breastfeeding': Gini was a non-smoker whose bad shoulder left her in agony. Eventually, she discovered it was lung cancer. Now, our expert reveals the hidden signs of the disease ⊖⊖

When Gini Harrison began experiencing shoulder pain after the birth of her second child she believed that it was probably a pulled muscle from breastfeeding.