Hi DMetz,
I am sorry you are so uncomfortable with the constipation side of things. THAT is no fun. We share a surgery date- June 5. I had issue with same problem in the hospital. What worked for me in the hospital and what I was sent home with RX for same is called Senexon-S. It appears to have a generic name of sennosides-ducosate. It still works well for me now and I continue to take it while I am on the narcotics. Yogurts, cereals, fruits and vegetables help also (if you can eat with your nausea issues)
I have caffeine free ginger ale for nausea- I find room temp ginger ale is easier to take.
I hope you feel better soon!