My trapezius muscle has been killing me as of late and has really been hurting my posture. I have been doing exercises to stretch and relax my trapezius such as squeezing my shoulders back, shrugging my shoulder, and stretching my head to my shoulder laterally. These exercises have been making my shoulders hurt even more, and it feels it inflames it. So I was just wondering what can I do to relax this muscle. When I massage it I can feel that it is swollen, so I know something is irritated. I have not been lifting weights or exercising much. What exercises and stretch can I do to relieve this tension?