My age 36. I am trying to conceive I have seen less period flow from last 2,3 months. I have some pain changes in periods. Previously I had heavy flow starting 3 days and 4,5 days less. Previously I had normal stomach pain lower abdomen but now pain in one side only left and back. I had done hsg test before 2 months. My all test normal. My periods are regular 28 days and 5 days duration but change in flow and pain. Is this normal or due to test? What should I eat to increase flow.