Question: What is actually wrong with me? Just returned from the ER. I went in with severe pain in my left arm, difficultly breathing, and tightness in chest. EKG said I did not have a heart attack, blood work showed "no heart damage" Those symptoms were acute for about 1.5 hours and then started to subside. The doctor told me I was magnesium deficient & gave me a supplement. However, the official diagnosis on the paperwork was bronchitis (which as an allergy sufferer, I have had many times and currently feel none of those symptoms) and I was released before the chest X-rays had been read. Paperwork shows my magnesium at 1.7mg/dL with a range of 1.8-2.4 and this was the only issue the doctor mentioned. Did not talk about bronchitis which was the diagnosis on the paper, and prescribed Augmentin on my take-home paperwork without mentioning it. I'm feeling ok now other than very fatigued. But with a history of high blood pressure, being overweight and a family history of heart disease, heart attacks & strokes on mother & father's side.... should I be worried? What should I ask my regular doctor?