<s>[INST] i have been experiencing pain in my upper back the last few days whenever i take a deep breath. I thought maybe i had injured my back, but have had no situations that would have caused an injury. I feels more internal than muscuar.Now it seems to be even in my lower back. I noticed that as the temperature is colder outside, it hurts more when i breath in the cold air. it this possibly something to do with my lungs and not my back?advice?thanks,Alex [/INST] Hi Alexios may consult a physician initially who can examine and determine which is implicated, back or lungs, pleura(covering) of lungs. Take Tylenol tabs, avoid bend sand try observing whether coughing, sneezing increase pain. Report to doctor. Also record any temperature or fever or any other symptom like acidity, burning in stomach, bloating,based or flatulence. Take precautionary pantoprazole 20 empty stomach in morning once daily </s>