I am a postmenopausal 43 year old woman. I experience chronic constipation. A few weeks ago, I was severely constipated. I was experiencing waves of nausea. I left work and went to bed for several hours. I spent the weekend using different remedies to induce a bowel movement. I have found if I do not use senna every day, I get very constipated. I was having frequent bowel movements the last two days and decided to take a day off senna. Today, I am weak, waves of nausea, lethargic. Very similar to two weeks a ago. What do you think?