question: Hello, I m a 28 yr old male and lately I ve been waking up with very strong back pains which I m sure is due to my wrong sleeping ways. I ve been suffering from muscle knots and pinched nerves since then. My question is, I m having shortness of breath from time to time and slight numbness in my arms and muscular pain in my middle back, is that related to the pinched nerves and muscle knots? Heart beats are always normal,and so is my blood pressure. Also I was a heavy smoker, I used to smoke 2 packs a day and I suddenly dropped to 5 cigarettes a day. Could the shortness of breath be part of withdrawal? Thank u in advance.