I have been having mild, short, dull pain in both sides of upper back, and upper and lower chest. The pain comes and goes and is not every day. I do not smoke, weight is 130 and am 5 6 . I play soccer, hike and walk on the treadmill with no discomfort. I have been noticing my bras are tighter and I have not gained weight. I have contacted my doctor via My Multicare to get an appointment