Well, you may or may not have been told that you have ‘knots’ in your muscles, however, that is NOT a medical term or diagnosis!
Your muscles don’t get knotted or bunched up when you get stressed, it’s more likely that your muscles get tight from postural patterns. Most of us have experienced some form of muscle tightness whether it’s from years of hard work, long hours of standing, sporting activities, incorrect breathing or life in general. This muscle tension can be relieved by massage and/or by changing your actions/habits e.g. the ergonomics of your work station; moving in various different ways to counteract repetitive movements and by staying active.
Trigger points (a phenomenon with mixed scientific evidence), are tender little nodules of tight bands within muscles that may refer pain elsewhere in the body. These too, can be eliminated with massage, stretching and self-massage by using various balls and/or foam rollers.