My blood flow during periods has become very light. Earlier I used to get periods for 5 days(normal flow), but now it has reduced to 2 days (light). This has happened over the course of 4-5 months. I don't have that much stress but my lifestyle is sedentary due to my job. I try to exercise 2-3 times a week. I also try to have proper food. But I'm worried, as for every period the 'number of days' is getting reduced. 5 days to 3 days to 1.5-2 days now. What should I do?