The heart monitor suggests that you have some sort of atrial arrhythmia. I am not sure that these account for all your symptoms, but, if fast enough, they could cause dizziness. Stress can elevate the heart rate, but should not cause atrial arrhythmia. The blood pressure you mention is low normal. The cardiologist will evaluate the heart rhythm strips and determine whether there really is an abnormal heart rhythm, or whether you are just having fast heart rates (from exercise, anxiety, dehydration etc.)Make sure he has access to the test results.
Thank you for your response.