Hi M.,
You didn't say if you are working full-time, but, either way night work can be very hard on the system. What is your sleep schedule? Do you come home and care for your daughter during the day and then sleep from 4:00-9:00 or do you sleep when you get home and then spend time with your family? Either way you are probably getting only 5-6 hours of sleep. (not enough) If you are doing this full-time then you are going to be chronically sleep deprived. (as if having a new baby doesn't leave you sleep deprived enough!)
In order to be regular in your bowel habits, you will need to be regular with your schedule. In addition to optimizing your sleep habits, you should remain well hydrated and get lots of fiber. Obviously eating lots of fresh fruits and vegatables is the best way to do this. Also make sure the breads and cereals you are eating are whole grains. I simply make sure I have a bowl of raisin bran each morning and I'm covered.
It sounds like you do not have a regular schedule for sleep, work, excercise or diet. As hard as it is, try to find a balance between these, you will be healthier all around. I'm not too sure about the swampscott area, but there are new mommy groups everywhere. I would suggest you contact the hospital where you delivered to find out what resources they have. They most certainly will have some. Having social ties with other news moms is essential to your well being.
Best Wishes to you and your little girl.
J. L.