A relative of mine.....male, age 70 , height is 5'9" ..average weight.....works full time outside the home.....He has; Burning in the lungs.....cough......sore throat but.....no fever & no drainage from sinus areas. He will not go to see a doctor. I fear it may be serious because of his age & a feeling of burning in his lungs. He is a heavy drinker & suffers from serious depression. Does this sound like Flu? Thanks for your help!