concentrate even after rest? Toxins affecting the brain can lead to this fatigue-like haze. Many people attribute it to stress, but it ties back to waste clearance issues.
And physically closer to home…
7. Mild, Achy Discomfort in the Lower Back or Sides
A dull ache near the kidneys (just below the ribcage on either side) that comes and goes? While not always present, this vague discomfort