Going once every 2-3 days is not a good thing. I remember Dr. Richard Schulze saying that a person should, in a perfect world, go within 30 minutes after every meal. Now, I am not even close to that...............But I do go at least once and sometimes twice a day.
But, what I would suggest to you is study the Colon Cleanse forum. A good cleanse might put you on your way to a better normal bowel movement. There are several Colon Cleanses ......some super cheap and some a little more expensive. I have completed several.
Drinking water is a key to bowel movements, as well as exercise. Of course, your diet plays an important part, too.
I apologize for not being able to go more into detail, but I have to get ready for another work day.