Sharp shooting quick pain in chest, like quick needle prick, onsets for a day or two then subsides, comes back again. Clean diet, no drugs. Pls help.

Need more info. Would help to know what triggers the pain, what makes it better or worse once it starts (like breathing, coughing, movement or pressing on it), how long it lasts and any other associated symptoms (like shortness of breath or dizziness). Your description sounds most suspicious for musculoskeletal chest wall pain, but it could involve lungs or even (unlikely) the heart. Best check with your doctor.