 [ Symptoms ] cat bite on fingernail its white now and ready to fall off will it grow back if it falls off cat bite on fingernail went to urgent care got antibiotics now its white and ready to fall off will it grow back if it falls off [ 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