Abnormally painful cramps, 3 day period, after 3rd day blood became brown spotting, constipation, what can it be and what should i do?

Home measures: Blood is brown means the old blood is being expelled. That is good.. Cramping may be more than usual if your cycle was off a few days from changes in your life that may have affected your cycle form stress to weight change. Need to increase fluids to get rid of constipation, take something like midol or aleve (naproxen) to relieve the cramps, take a bath with lavender oil in the water to relieve stress.