Hi and welcome to HCM. Chest pain following successful percutaneous coronary interventions (stents) is a common problem. Although the development of chest pain after coronary interventions may be of benign character, it is disturbing to patients, relatives and hospital staff. Such pain may be indicative of acute coronary artery closure, coronary artery spasm or myocardial infarction, but may also simply reflect local coronary artery trauma. So it is common to have some chest pain after stenting. In some cases it may require repeat coronary angiography and additional intervention. Commonly, repeat coronary angiography following percutaneous transluminal coronary angioplasty (PTCA) in patients with chest pain demonstrates widely patent lesion sites suggesting that the pain was due to coronary artery spasm, coronary arterial wall stretching or was of non-cardiac origin. Dont worry too much and trust your doctor. If it is very uncomfortable to u, then communicate with your doctor for further action. Regards.