Doctors typically go the route of least invasive to treat which you want. That would mean a strong course of antibiotics if there is bacteria in your urine. They also use antidepressants for pain. Muscle relaxers if you spasm and anti inflammatory medication. These things are first line therapy. The buring of tissue is pretty effective though if those fail.
You'd also want to figure out why this happened such as if you have a hormonal situation leading to it or recurrent uti's?
However, you were diagnoses by whom? The urologist does not agree with your diagnosis or the findings of your tests? No antibiotics or other medications were offered? There is also interstitial cystitis to look into which is very similar.
But it doesn't sound like the urologist you saw was very helpful! That's unfortunate. I believe in these situations that squeaky wheel gets the oil. So, I'd call, go back and insist that more happen to help you with your symptoms. Let me know how it turns out!
Have you considered it could be interstitial cystitis (IC) as specialmom mentioned? IC is fairly common and the typical symptoms match yours. Avoiding certain foods is sometimes helpful if it is IC. Here is a link on IC - https://www.webmd.com/urinary-incontinence-oab/interstitial-cystitis#1.
Sometimes procedures can leave us with side effects that are as bad as or worse than the problem that was fixed or was supposed to be fixed. So getting a definitive diagnosis and starting with the least invasive "treatment" is usually a good way to proceed.
I hope you can get answers and relief soon.