Symptoms may include nausea (feeling sick), diarrhoea, jaundice, yellow discolouration of the skin or eyes, dark urine, pale stools, bleeding easily, itching or chills − Kidney problems (possible kidney failure, inflammation of the kidneys) − Irregular heartbeat − Meningitis (inflammation of the membrane around the brain and spinal cord) − Hallucinations − Worsening of epilepsy (possible more frequent and/ or severe seizures) − Inflamed blood vessels (can cause fever, aches, purple blotches on the skin) − Blockage of an artery or vein in the eye leading to partial or complete loss of vision, conjunctivitis, eye infection (pink eye), bleeding in the eye