Anxiety
I remember when I was in College I had to take a speech class to get my degree in Business Information Technology and boy talk about having speech anxiety I wish that they had help for it. I remember getting up in front of the class to give my speech and the first few times, I was so nervous, but soon after getting to know the class I manage to get a A in the class.
But still to this day if its not in front of someone I know I really stammer and stutter I guess you could say that I had bad speech anxiety.
But the college days are over and thankfully I don't need to stand and give speeches anymore.