I'm a smart, articulate person, but giving a presentation, or in very large groups, i get so nervous that i shake! why is this!? i do have high self esteem, i just feel everyone is judging me when i'm in a large professional setting, and i can't concentrate on what i'm really there to talk about. is there any medicine that would help? i know nothing about this...

thanks

In my case Ativan

zoloft or effexor