With any cardiac symptom, I must refer you to see your doctor for exam and evaluation. Your symptoms could be related to anxiety in which case you must review your stressful situations and try to avoid them. I am wondering if you have a history of asthma or if you just feel breathless when your heart races. A normal blood pressure is 120/80 and can increase with age. Your reading is not high, however if it continues to elevate then it must be checked by the doctor. I do not see anything to worry about at this time.