I am a 60 yr old female. Usually have 1-3 bowel movements a day. I have moderate lethargy and shakiness and I haven't passed any stool except 4 extremely soft, light colored stools in the last 3 days. These stools wouldn't even account for a cup of matter. I am eating normally and have no loss of appetite. I have had to strain to pass what little stool I've had. I have "bowel sound" and I have taken 1 dose of Miralax for the last 2 days. I am getting concerned .