I am having dark brown discharge 1 week after my menses. what is wrong with me? i feel no pain and no odor.

Questions for U :): Don't worry! "darker blood" at the end of your cycle is normal. It means the blood has been in the vagina longer, similar to when you're cut fresh blood is red , but after exposure to air it becomes darker. Do get std testing and an exam if you have pain with sex or urination, change in your normal vaginal discharge, odor or itching, a new sex partner, or sex without a condom.