A man who died of brain cancer was misdiagnosed with anxiety and told to "breathe into a paper bag". Keith Evans was 21 when he collapsed during a suspected panic attack in February 2010.
He later developed painful headaches and was given tools to manage his anxiety. Weeks later during a visit to his GP, he was referred for an MRI scan where he was diagnosed with a glioblastoma - a fast-growing and aggressive brain tumour.
Despite being given six months to live, Keith survived five-and-half years. He died aged 27 in October 2015.