Lung check and balance meridians.
This sounds bazzar but try holding your shoulder with your opposite hand fingers drapped over the top, palm down and place your thumb into the hollow that is in front of your shoulder (half way down the inside edge of the shoulder muscle) on the inside, just under the collar bone where the top rib goes under) there is a hollow there; relax shoulder and chest, put your thumb into it find the sore spot and breathe in and put pressure on that sore spot from the inside with air and from the out side with your thumb at the same time, for a few days.
May want to check the meaty bits in the palms of your hands too; , probe around and see if one them has an extra sore spot in it and rub that out and away with your other thumb while holding your own hand.
If thats sore then you'll find another sore spot under the meaty bit of your large toe, work that out as well , those spots are all connected to the lung.