I am 28 years old, average height and weight. I have been suffering from heart palpitations, irregular heartbeat, pounding heart, tachycardia, dizziness, sudden fatigue, weakness, pains in my head(random), muscle spasms, coldness in my chest and left arm, chest pain, and chest tightness. I notice these symptoms mainly in the morning when I am laying in bed, and at night when I am relaxing on the couch. It's a very uncomfortable feeling, and I feel like my symptoms are becoming more frequent. I'm sure I left something out, there are so many stinking symptoms to keep track of. My symptoms started a year ago when I changed my diet and drinking water. I started eating an organic, minimally processed diet, nothing crazy. Also, I bought a reverse osmosis water system for my house, and started drinking that water. However, I didn't do enough research on it, and I was drinking distilled water basically. It was filtering out all the bad, but also all the good essential minerals. I never got the filter to replace the minerals(genius that I am). Anyways, after researching I was drinking "dead" water, I quickly stopped, and started buying jugs of water from the store. I did that for about a year. Recently, I started filling up my reusable jugs with the Primo RO water at Whole Foods. I can't help but think that drinking that "dead" water caused all of these heart problems by sucking out all the needed minerals from my body. So I've had every cardio test done known to man, and at first they said, it's just a little bit of sinus tachycardia. My most recent monitor that I wore, they said I have a slight irregular heartbeat, but nothing that they would put me on medicine for. They just want me to try exercising to see if that helps. Feeling my heart going wacky in my chest is driving me bonkers! I'm sure worrying about it 24/7 doesn't help the matter either. I have been reading about magnesium supplements helping with my problem, so I am here to get comments, experience, suggestions, and/or stories. Please help!