Greetings, I was having a nap, woke up and suddenly got up. Started feeling nauseous, shaky and sweat a lot. My two arms started feeling funny (numb) felt lightheaded like if I was going to faint, had some palpitations also. After like 5 minutes or more I started feeling better and took a reading of my bloodsugar, and it was fine 84mg/dL. But now I m feeling drain and exhausted and little lightheaded but not that much. What could it be? Thanks.