If you don't feel well during the operation tell the anesthetist ASAP, he/she can alter the drug dosing so you don't feel sick or anything.
After I left the hospital my pain meds consisted of Tylenol and Advil (as per dr orders), these were just fine to take the edge off and surprisingly worked really well.
And if you have to poo, laugh ect, hold a pillow on your belly. This helps the pressure.
No serious working out until 6-8 weeks (if you plan anything like that).