half way through my morning shower this morning, i became so lightheaded and dizzy. I was trying to hurry and get out. Then I starting seeing stars. I got out sat on the toilet seat, then vomited in the sink. I made my way to my bed, laid down. Then my heart started beating hard and irreguler. I laid there for a couple of hours, then got up. Still lightheaded. Have had diarrhea the rest of the day. Noticed my index finger and pinky finger on my left hand were completely numb and had turned white. What is wrong with me?