I was on my treadmill and was up to 22 minutes and my ears starting hurting and I had heart palpitations with dizziness.  Should I be concerned?  I am going to be 56 years old.  I am 5 feet 2 inches, weight 111 lbs.  Family history of high blood pressure and hypercholesterolemia.  Premature heart disease in my maternal grandfather who died in 50s.
Please avoid high intensity exercise for now. You should get your BP measured and get some investigations done :lipid profileECGechocardiographyplease get back with the reports