4 and a half weeks POST OP

We all had to find a way to make peace in that department and you will need to experiment to find what works for you. Long term constipation and straining can create some seriously nasty and reoccuring complications.

You are correct - you should not be having painful BMS - you need to figure out what will work for you.   Benefiber in my SF Greek yogurt 2-3 times a week works for me.  Start on something and adjust.

PS You may need to get some latex gloves (non-if you are allergic to latex) to help things.  

Here are some previous threads that are relevant

http://www.obesityhelp.com/forums/amos/6000889/Constipation- Soon-after-Surgery/

http://www.obesityhelp.com/forums/amos/5371784/Lets-talk-poo p-and-constipation/