 [ Symptoms ] what are the symptoms of gallstones [ Disease ] yes stress can cause bradycardia or reduced heart rate and as you have a recent stressful event it can be a cause so my advise to you is to first of all relax and start doing meditation and deep breathing exercises take nutritious and a sufficient sleep of atleast 8 hours if at all the symptoms does not get better then consult a cardiologist and get a thorough evaluation done hope this helps