Normally confident with social/performance anxiety. Help?!

It's getting to be debilitating.

The basic gist is that any time I need to speak in front of people, where I'm the sole focus, my fight or flight response goes into overdrive.

Tremor, sweaty palms, shaky voice, rapid heartbeat.

I'm in a career where I need to speak in front of professionals on a fairly regularly basis (bi-weekly). Sure, with tons of practice and familiarity with the subject and my audience it might get better, but for now it's miserable.

The only thing that seems to help is a beta blocker, Inderal (propranolol) to be exact. I take 10-15mg before I might present and I'm almost always fine.

The odd thing is I speak great over the phone, one on one or when I'm engaged with a handful of people. But put me on a podium in front of 10+ and forget about it.

What are some of the underlying causes of this? And can Inderal/Propranolol eventually stop working for me?

Thanks!!

The other somewhat strange thing is I'm typically pretty outgoing and funny.

But just today I was asked to introduce myself (a two second intro with just my name and job title) and choked up.

It's really confusing.

Well this fear its comon around people and not necesarly anxiety to have it .what i would sugest you its that before you start a speach to focus on things you want and dont focus on fear shyness etc .Also autosugest you yourself that you are very courageod and do this with emotion