I'm sorry. you have been through a lot! It's almost like a trauma. The thing about doctor's advice is that you are not the first patient he's probably had to do this surgery on and he knows what a typical recovery pattern is. However, all people are different and if you need a bit longer recovery than average, you are entitled to it. You may be suffering some anxiety post surgery though. I would schedule a post appointment to discuss your progress, how you have healed and your issue with the feeling of not emptying your bowel. That way you will be able to move on with confidence after the surgery.