ACE Inhibitor and public speaking?

I normally have been taking beta blockers pills before any public speaking event and they have been working wonderfully for me.But recently i came upon an article that provided some indication that beta blockers could increase one's risk of getting diabetes by as much as 50%....so that got me worried....I read... show more I normally have been taking beta blockers pills before any public speaking event and they have been working wonderfully for me.But recently i came upon an article that provided some indication that beta blockers could increase one's risk of getting diabetes by as much as 50%....so that got me worried....I read in the same article that ACE inhibitors are a good replacement for beta blockers, and can possibly prevent diabetes. But that left me wondering, are they as good as beta blockers when it comes to help me in my public speeches considering that they only affect blood pressure and not the heart as well like the beta blockers.thx.
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