I experienced severe sweating, dizziness nausea and vomiting. The dizziness was so bad I could not move or open my eyes without throwing up. My clothing was soaked through. I eventually passed out cold on the floor. I checked my symptoms and I m concerned I may have suffered a heart attack. Feeling better but extremely tired. Don t have much of an appetite and still slightly nauseated. Did I have a heart attack? I am 51, smoker, type 2 diabetes and have high blood pressure. There is a history of heart disease on my father s side and he suffered several heart attacks in his lifetime.