Will a Diastasis Recti Repair Affect a Bladder Prolapse by Causing Intra Abdominal Pressure Once the Sutures Are in Place?

I had my first baby in October 2012 and I was left with a mild bladder prolapse and a diastasis recti of 3-4 finger widths from my breast bone to my pubic bone. I have seen two physical therapists and told them both that I was going to get a diastasis recti repair. They both told me to be careful because if the doctor sews me up too tight, it could cause pressure on my pelvic floor (intra abdominal pressure) because the linea alba has give in it but the sutures don't.