What Causes Breathing Difficulty, Dry Cough, Chest Pain And Headache?

what causes difficulty in breathing when one starts walking that you always walk taking a breath?, accompanied by dry cough that keeps persisting for days,chest pains, pricking body. those are pains have continuously for the past week. I do have lower abdominal pain, not stomach pain as in running stomach but just pain today I was also having pain in half of my body during this week. the left leg, left hand and left part of chest was painful and pricking plus headache was coming and going all around my body. On the upper left chest, top breast part, I felt like a sharp object like a knife was stabbing me to my back and pain lasted for a day the I felt like it was removed then I had pain on that place for days that I couldn t bend and the coughing was straining the painful part. Pain just disappeared after some days