41 yo woman with no previous health problems. 5 1 128lbs. I have had feelings of my heart twitching for the last 4 hours intermittently with some numbness in my left arm. no meds and good nutrition with exercise 2-3 times a week...mainly swimming laps. what could be going on?
Exercise could also be one of the reason. Suggest you to get your B12 levels done and cervical x-ray.