I'm sorry to hear that, unfortunately I'm not very familiar with leaky gut. But the lack of urine output sounds a little peculiar... Are you dehydrated at all or feel thirsty? how much water do you drink a day? What does it feel like, Do you have pain or pressure in the pelvis? do u have the urge to pee, but cant? what colour is your urine, dark or light?
But not cause any alarm, but you should go see a Doctor or Urologist if increasing your water intake doesn't help because there could be something else going on in there (not the genitalia itself, but the urethra, bladder, kidneys or maybe even prostate if your male). Just something to consider.
I find that drinking 2-3 L of water a day will really get you peeing. hopefully that helps.