and NO, I have never had any kind of issue like you are experiencing, except on the rare occasions where I drink a bunch of beer. lol

 
I mean this in all sincerity, you have been fucking hookers for decades, most likely you have seen several hundred different women at a minimum, more likely a thousand or more, I can't see how this can be nerves. I know this is a case of "do as I say, not as I do" but my advice is to go back to the doctor. I think you already know what the issue is and you are just asking for a "nudge" in the right direction. So here is your nudge, Go get checked out. I am sure you want to still be fucking when you are 75, if you don't fix this now, your chances of still fucking a decade from now will go down exponentially. Go see a doctor, and do it soon. I'd like to still be arguing with you ten years from now.

When you’re calm and relaxed, your bladder gradually fills up with urine from the kidneys. Throughout the day, your body sends signals to your brain that either say, “Hey, it’s time to go to the bathroom!” or “We’re all good, you can hold it a bit longer.”  

 
So when you feel anxious, your body’s fear response can be triggered, overwhelming your bladder’s mechanisms for retaining urine, causing you to want to urinate.

I'm 71 and have never had any prostrate issues that I'm aware of. One thing I have been observing over time however is that when I have to pee I REALLY have to pee. I can't hold it like I used to.  

I'm thinking this is a normal part of aging and not really worried about it. Haven't seen a provider for a while but I remember when I did I also found myself taking frequent bathroom trips. Heck, I may have even done that when I was much younger.

I’m 65 and consider myself in great physical condition. I drink coffee in the morning and then urinate it out. I drink lots of water and urinate as I normally do. But when I drink Jack Daniels and Diet Coke it seems like I need to urinate ALL the time even after I urinate.

Some alcohol causes men to have frequent urination.

I can't drink beer without having to get up and pee every 10-15 minutes. It was a real pain when fishing at a crowded lake.  

You might want to see your urologist.