I know exactly what you mean. I don't feel that way in every game, but in some I do. I don't think it's fear - I know it's not fear - but rather adrenaline. It usually happens when I smell victory, but haven't quite unraveled the mysteries on the board. If it's a long game, I get up and walk around. If that's impracticle, I close my eyes and try to picture the position on the board in my mind's eye. This seems to redirect my attention to the problem on the board and slows my pulse rate.
Ivan, you have to play more often and against a multiplicity of opponents. You are nervous because you feel unprepared, fear your opponent, or afraid to make a mistake and lose. You may not be willing to admit it, or not be consciously aware of it, but your problem will fall under any of the above, or all of the above. Play more often and actively seek opponents who could give you a hard time. Take the bull by the horns and get yourself wet and dirty. Soon, when you improve through study and competing, you'll realize that you can hold your on pretty well against most opponents. Your attitude will shift to " what can this guy/gal show me on the board? I'd like to see how he/she plays this game. " I am always curious about my opponent, and I look forward to beginning the game because his moves tell me about him. One gets a sense of his playing strength by his choice of moves. Ratings are not dependable, in this respect. It becomes more of a discovery for me than a confrontation. The game you play with your opponent is like a story that is unraveling, and you look forward to its conclusion. Don't worry about losing. Do your best. There isn't a chessplayer in the world who wins all the games he plays. Enjoy the game.
dude. This is not fear. place yourself in front of a chessboard with a worthy opponent or a grizzly bear wanting to eat your testicles. which fear is more pressing now? when you realise this? fear not. he/she is just a random dude/dudine. your testicles are safe. sleep well. :)
i always feel nervous every time i played chess... how to control that feelings because it affects my performance...hope you help me.. thank you...