Hope everything comes out OK for you (pun intended)!
I had lots of issues post-op. Eventually (a month after surgery) I was readmitted, needed a bottle of sparkling magnesium citrate. That WORKED. After that occasional issues were dealt with via Miralax, which worked but much more gently than the industrial strength mag citrate. Even now, 15 months post-op, I still have occasional problems. Such is life.