Hello, a'm 45 year old mother of 4, have suffered with upper back pain for years( 4 months ago I went to doctor with pain in collar bone and pains in chest and down both arms, Was told it was infection of chest muscles, last few days have been getting progressively sicker, pain in collar bone both sides, swollen glands in neck , sore throat , aching arms ,burning hands, sore ribcage, headache, pain all over my body when I walk, have never felt so sick, is it very bad flu? Can you help, many thanks