My periods ended as they usually end. i took a bath to clean up myself but right after some hours some brownish water started coming out. why is this?

Hormones: The brain controls the release of estrogen and progesterone from the ovaries and uterus. Sometimes stress, meds, exercise interrupt the normal signaling mechanism. Changes are normal and will correct by themselves. If still having bothersome discharge check in with Ob Gyn to see if they can help by exam and cultures of vagina, labs and history.