Have you experienced suffering from a mild diarrhea after an excessive workout? If you think it is a problem, think again because the bowel movement is a way of removing toxins from your body. When the muscles are worked out excessively that you feel the muscle pain particularly on your legs, thighs and arms, expect the mild diarrhea to follow after you have taken a meal. But if you don’t experience that then it means that you have no toxins in your body.