Energy overload.

In preparation of my first half-marathon, I read many discussion boards and forums debating the merits of energy gels. I figured I best try one prior to the actual race day and utilized a PowerBar gel in Tangerine flavor. Have you ever tried Metamucil? You know the stuff. Well pretend it was that flavor, in goo form. I shot it in my mouth and quickly washed it down with water. Off I went for a training run, 9 or so miles and halfway through I felt like my throat was going to fall out my butt. My heart was racing way faster than necessary and my stomach was doing flip-flops. I decided against using the gel for the actual race due to the fact that I would rather finish the race than pass out next to mile marker 10.