Pee question

If I drink what's even considered a normal amount I'm in the bathroom constantly. I went to the doctor because I thought maybe it was over active bladder but he says no, that when they did my hysterectomy they did a bladder repair and from an ultrasound the repair has put my bladder more straight up and down than most people's is so I feel the pressure sooner. He had me measure output when I feel the need to go and it's usually 100 ml or that translated to 3.38 oz which he says is about 1/2 of normal.

For anyone interested, how much do you pee when you have to go?