Steve, I am going to apologize first and then make a comment about something that you likely already know.
Playing on video and playing to an audience in front of you... About the same level of difference like playing in a locked room and playing center stage in front of thousands.
Every, and I do mean EVERY performer goes through what you do to some lower or higher level, or even worse. Whether he admits it or not, even your Dallas has those same fears. From beginner to world class performer, it is felt by all. Everyone basically has the same answer... Play through it, the feeling passes. It might come back if you leave stage and return, but guess what, it goes away again.
The brain is wonderful, but it can only do ONE thing at a time properly and you can push it to where you need it to go. One can sit there and worry, causing a bad performance or one can let the music take you away with the words silently wordrd in your head... "Feel the music and nothing else, I am alone in my own world for the next 3 minutes". Close your eyes and let whatever happens, happen as it does... without expectation.
Know what happens? No matter how you perform, you have a good time. Learn to worry about the things you should and let go of the stupidity that is fear.
Would you like to know the heights the fear can go to? Try playing in front of a group of judges that are holding a copy of your music and scrutinizing every sound and note you make... analyzing your technique to the Nth degree, and KNOW they are grading everything... Now THAT is Preassure! How do those musicians handle that? By not caring about the judges for those 3-5 minutes, and being themselves and concentrating on the music, not the judges.
Now, you are not doing this, yet internally, you can go the easy way or you can go the hard way. Yes, surprisingly, it is no harder than making a simple choce. Choose to worry and fear or choose to enjoy... maybe oversimplified, but fact none the less and all the psychology matters little if you look at it this way. Why overcomplicate so simple a pleasure?
You choose.