This was the same for me... I can't even pronounce my own name... The words just don't come out of my mouth... For me whenever i have to introduce myself that was a nightmare for me.. i have improved myself idk how but i did now i can pronounce my name but whenever i have to give a presentation or say something to someone it is a burden for me.. my heart just start to pounding abnormally idk how it detects that.. sudden anxiety erupts... Nothing seems to work at that time to calm yourself down with breathing techniques or anything... And you can express yourself as well no one understands how you feel....