I am 27 year old female, smoker for 10 years. Anxiety issues for several years. About 6 months ago started noticing pain on the lower inner portion of left scapula, along with neck pain upon moving it certain ways, and tingling in upper left back and arms (infrequent in the arm) Also have been told that I have several "stress knots" in the area of the pain. Muscles always very tight and tense. Went to get an x-ray of thoracic back, as my doctor thinks I mught have some kind of muscle or nerve issue, he stated he wanted to rule out any "bone issues or tumors." He said that and I about fell off the chair. Could the pain be related to lung cancer? Breathing never laboured, no coughing up blood. Though I am tired all the time and have gained a little weight over the past year...