23 yo female i have tenesmus for more than month .. i eat food rich in fibers .. my stool contains black things like sticks and very small white balls?

Not enough fiber?: Often patients feel they are taking in enough fiber, but may not be getting the right type, amount, or mix of the above. Consider taking a psyllium husk supplement such as Konsyl or Metamuci (generic available). If this still is causing trouble, consider seeing a GI doc or Colorectal Surgeon. Sitting in a warm bath tub can help relax this sensation at times. Meditation and yoga can also help.