Hi...thanks for this query. Based on the information you provided, you seem to have social anxiety or social phobia which is excessve fear of intense & often unfavourable scrutiny by known persons, authority etc. I am using term excessive because some amount of unease, anxiety is experienced by every one of us before giving a talk in public. But in your case, you seem to have assumed a spectator role where you yourself are also closely monitering your body reactions & are facing significant difficulty in these situations! Hence, my advice is consult a Psychiatrist. Relaxation exercise, Behaviour therapy methods like graded exposure etc. shall prove very helpful to you. Also medications lke propranolol, SSRI like paroxetine will help you overcome these difficulties. Good Luck!