Hello, I Am Concerned Abbout My Husbands Intermitteent Back Pain,

Hello, I am concerned abbout my husbands intermitteent back pain, which he sayes, feels as those it is his lungs. He is 59 yrs of age, smoker, apprx. 25 lbs overweight and gets little exercise. What is concerning to me, beside the obvious, is that the onset of this discomfort/pain has been very sudden. Just within the last 7 - 10 days has he expressed this symptom to me. No fever, no chills etc....past medical history includes heart attack apprx 6 yrs ago, has high cholestreol and high blood pressure - takes no meds, smokes marijuana and occasionally engages, recreationally, in illegal substances.