Has anyone exercised more then their norm and then afterwards feel weak, shaky, and a little dizzy? I usually work out for 50 minutes a morning. I did two dvds this morning and worked out for 1 1/2 hours. The first one was a toning, weight dvd for 45 minutes. The second was cardio. I didn't eat much for breakfast and when I got done I started getting scared I was feeling so weird. It almost felt like a panic attack but I know it wasn't cause it came from no where and my thoughts were no other then exercise. The symptoms felt were a little different too. I pumped a bunch of water in me and ate a special K protien bar and I am doing better. Wow. Has anyone ever done this?