Often feeling tired, short of breath is heart disease?

Question
Hello doctor, I have hypocalcemia with blood potassium, 2 months ago I was hospitalized because of leg cramps, now, after 2 months I practice eating healthier and gain weight, but if I Outside in the wind and especially when I'm driving on the street, I feel a sharp pain on the left side of my chest, accompanied by cold sweaty limbs, I have to find a place to lie down right away so that the numbness in my limbs can be stabilized. I went to the doctor again but the calcium and potassium test results were normal. Sometimes at home, when I feel tired in my body, I just need to lower my head a little, it feels very difficult to breathe. Can you tell me if I am lacking electrolytes or have heart disease? I went for an electrocardiogram, the sinus rhythm was 48 and the second time was 55.
Nguyen Mai Trung (Nha Trang)
Answer
Hello, when you have tested your electrolytes: Calcium and Potassium are normal but you Chest pain, sweating hands and feet and numbness in hands and feet, this symptom is not caused by electrolyte disorders or heart disease, you just need to adjust your lifestyle: Drink more than 2 liters of filtered water per day (excluding soft drinks, coffee, tea...), eat a lot of vegetables - tubers - fresh fruits, eat a variety, eat well, not too full, don't smoke, exercise 30-45 minutes a day, 3-5 days a week ; Keep weight to BMI = 18.5-23 Kg/m2 (BMI=weight/(height), sleep 6-8 hours a day.Your heart rate <60 beats/min is called bradycardia, however, If you don't have symptoms of chest pain, fainting, you don't need to worry
Master, Doctor Danh Man - Department of Medical Examination & Internal Medicine - Vinmec Phu Quoc International General Hospital