Hi. Thanks for your query. Noted the history of becoming constipated recently, which is not normal for you, bloating in the bottom of stomach, thought of period cramps but only small patch of brown discharge and also have back ache. The causes can be pelvic congestion the cause of which can be found out by the following: Clinical evaluation by a Gynecologist and a General Surgeon. Ultrasonography of the whole abdomen to know the exact cause and find out the diagnosis. Tests of blood, urine and stool. A course of a laxative to be taken in the night at bedtime. Further management as per the clinical evaluation and correlationship with the lab findings and other reports to get a proper diagnosis and have proper treatment.