I have a spot on my lungs, they say it is benign but is it really, it hasn t grown much in size, but I have become very short of breath, any little going up the stairs, any kind of faster movement, anything will make me short of breath. I have anxiety for years, take clonazepam 1m a day, and I m very addicted to the drug. I have noticed the shortness of breath, it scares me, I have told the doctors, but have not been really told anything, what could be wrong. I am going to have an x-ray on my lungs again, to check the size, but this has been done and I still have become short of breath in the last year. I am very afraid of what might be the underline cause because I have smoked for years, I know better than to smoke but addicted to smoking also. but the shortness of breath has become very noticeable and I want to know why. I look @ different causes, which there are a few things, but the spot on lungs, the smoking, anxiety, so what is really the cause of this shortness and it has gotten worse... I am 62yrs. of age. female