A few times a week maybe.. I use to get them more when I was younger.. A few times a day probably back then. My mother and father both have them as well. There is not much you can do about them. Cardiologist told me the majority of people have them, and the majority of them are benign, especially people with healthy hearts. Have you ever talked to your doctor about a beta blockers? I know they can help with them.. Also, the stress hormone cortisol is most likely the culprit.. Anxiety and stress have made me have symptoms such as numbness, buzzing of the feet and hands, visual fog, headaches, muscle twitches, pressure in my head, weakness, off balance feelings, etc.. I have been checked for diabetes, vitamin deficiencies, lyme disease, every autoimmune disease you could think of, I have had MRI's, xrays, blood work, EKG's, physicals, body inflammation checks, etc, etc. And not only do I never have anything wrong with me (knock on wood) it turns out that I am perfectly healthy.. You would be surprised how powerful your mind is.. I have had neurologists, cardiologists, and many more doctors tell me that you can make things happen in your body just by thinking about it if you truly believe it... It takes a long time to retrain your thinking, and for your body to go back to normal.. If your tests and doctors say you're okay, then you have to take the doctors word for it, and trust them. They are the ones who went to medical school. I know its hard, its hard for me too, but you need to try. I am sure you're perfectly healthy. best of luck. But discuss a beta blocker with your doctor and see what they say.