It is possible that you may experience some or none of the atenolol side effects explained above. Unfortunately, there is no way for your healthcare provider to know beforehand if you will develop side effects from a medicine that you have never tried. Therefore, make sure to let your healthcare provider know if you develop any side effects or something that "just does not seem right" while taking atenolol. Your problem may not be an atenolol side effect; but your healthcare provider will be able to diagnose and treat it.