I am a 34 year old male, 6 foot 2 inches and 16 stone (100Kg). I regularly wake in the mornings with aching lungs. I smoke ocasionally and drink alcohol at least twice a week. I was excercising daily (running 6 miles) until I pulled a calf muscle 4 months ago but I have been experiencing this aching for at least five years now (not every morning, maybe three or four times in a month). The pain usually goes away after a few hours but today I have had it all day. I have not visited my GP with this complaint. Please help.