anxiety
"I have a very nerve racking job that involves public speaking to large groups of important people on very technical subjects. When I started, I was a nervous wreck. My legs would shake involuntarily, my voice would crackle and a couple times I walked on stage and blanked out, leaving a huge audience full of people just staring at me, waiting for me to speak. I have been diagnosed with general anxiety but I don't take anything for it. My doctor gave me propanolol for panic attacks and I swear it is a wonder pill. I take it an hour before speaking. It takes away all of the physical symptoms of anxiety without clouding your mind. It takes the edge off in a way that no other medicine can, but you don't feel intoxicated, or altered mentally at all."