This doesn't happen to me, not exactly. However, I absolutely have to pee before I have sex or else I either can't orgasm, or the time that it takes to happen will be way off (either super fast, or ridiculously long).
And it doesn't even matter if I barely need to use the bathroom at all, it's just...I absolutely have to go.
I have this problem at night too, I have to pee right before laying down to bed. There is no side-track stuff, there's no walking to get a drink or turn off a light after using the bathroom, or talking in bed. If I don't get to immediately lay down and start trying to fall asleep, I'll need to get back up and use the bathroom in a few minutes.
Even laying on my side for a few minutes (usually the right side) causes me to need to urinate pretty fast. Laying on my left side is better, and there is no alternatives because of my back - I simply cannot lay on my stomach or back because of my back surgery from several years ago, it's too uncomfortable and I get sore really quickly.
I wake up usually 2 or 3 times a night to go pee.
Doesn't matter what I drink during the day. In fact, water itself actually seems to make it happen even worse
I don't have insurance so I've never been able to get it checked out. I wonder if I have something wrong with my prostate or if it's all psychological, or even if it's a byproduct of my back surgery.