When it comes to bowel movements, it can go a long way into telling a doctor about the current status of a patient. There are a number of different diseases that can present with some change of fecal pattern so if you notice anything out of the ordinary, make sure you bring that up to your family doctor the next time you see him to get to the bottom of what could be causing these sensations. 4 Reasons You Feel Weakness After A Bowel Movement Please note: You are currently browsing img siri her brown eye mccarty22nd that is 681x1024px in size. This image is listed in siri anal category. 4 Reasons You Feel Weakness After A Bowel Movement, 681x1024 in 112.10 KB.