Stressing about the clots, similar to gel, appearing when you’re on your period could happen as a result of hormonal changes or low blood flow. The weakness, dizziness, abdominal, back, or chest pain, and cough you feel can be associated with your menstrual cycle. All you need to do to feel better is find a comfortable position, rest, drink enough water, and use warm packs. Please visit a gynecologist if these signs continue affecting you.