Story By: Ana Lacasa, Sub Editor: Joseph Golder, Agency: CEN Video Credit: CEN/@naomimateos These are the shocking marks left on a woman’s skin after she was stung by a deadly Portuguese man o’war 'jellyfish' on a popular Spanish beach. Naomi Mateos, 23, was left hospitalised in the Virgen de la Arrixaca hospital in the city of Murcia in…