men can get fibromyalgia, too. It is not restricted to women only. However, ‘knots’ are not usually a part of fibromyalgia – at least not visible knots. Sometimes people can feel ‘knots’ in the muscles due to tightness from injury, lack of exercise, ior strain. This could be what you are experiencing. I can’t diagnose your condition on the web. However, if you are told that you have fibromyalgia by a licensed health care pforessional, then, yes, exercise and stretching are great for this condition. Good luck !!