Often when I'm talking to a group (or sometimes even just a few people) about something I am extremely knowledgeable and/or passionate about, I feel this intense tension in my chest. I get hyper-conscious of the words I'm formulating and it feels like I'm either running out of air, or the opposite, I am breathing too deeply and holding my breath. The more I know the subject, the worse it gets. I'll often find myself gasping super loudly and it gets so bad, I have to stop talking for a minute and center myself. It's horrifyingly embarrassing. I know public speaking is a common source of anxiety, but I don't think I've ever seen anyone else do this. Anyone else experience weird chest feelings when talking?