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It is less common for a person at that age to have a heart attack
. Nevertheless, the common causes of that condition includes low blood sugar
because you may have skipped a meal, infections, fatigue, inadequate fluid intake causing dizziness. Sweating in this condition points probably to hypoglycemia
. If the situation happens again, please get your blood tested for low haemoglobin
causing Anemia and also blood glucose to rule out both Hypoglycemia and Diabetes.