Daily variation in stool shape can be attributed to dietary changes. I would also consider irritable bowel syndrome.
If there is a persistant change in stool caliber, I would consider a
colonoscopy or flexible
sigmoidoscopy.
Followup with your personal physician is
essentialEssential balance
Essential hypertension
Essential tremor.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b