I had 3 nights of minimal sleep, had a night of drinking beer, drove out of town to a funeral, and came home. The next day I did a 45 minute work out and some racking in the yard and I began to have some difficulty breathing with rapid heart rate. I got very anxious and started sweating, got light headed and just fell down on the floor during the 2nd episode of these symptoms. I felt breathless and kind of lightheaded. Any Thoughts?