Just diagnosed with Bladder Pain Syndrome / Interstitial Cystitis

With a history of 4-6 UTI's a year for over 8 years, I have been very frustrated with my medical team's inability to uncover the "why". 2022's UTI's have progressively gotten more frequent AND progressively more painful in the lower pelvic region. The pain includes the typical UTI systems of burning, feeling of frequent urination, but not being able to actually pee. In the last three months, I have had two emergency catherizations due to extreme urine retention. The UTI's seem to be recurring regardless of antibiotic treatment. Klebsiella is a new bacteria showing up in my cultures beginning in November, 2022. Since then I have had 6 UTI's. On Christmas Eve 2022, I had symptoms of a UTI during the day, by bedtime I had level 7-8 lower pelvic area bladder pain. I could not sleep. Took Tylenol, AZZO, and finally started Augmentin 875mg 2x/day for 7 days on my own knowing I was treating without a culture or doctors direction. I have had two more cultures done since then due to painful bladder (painful to walk) and other UTI symptoms. First one came back positive for Klesiella and e-coli. I was treated for 8 days with Augmentin. Bladder pain persisted and 10 days later another culture done, but came back negative for any infection! My bladder pain level is a constant 5-6, like walking around with a migraine headache in my pelvic region.

My PCP's physicians assistant, who I saw yesterday, suggested Bladder Pain Syndrome / Intercystal ?? as a possibility. Not much coming up on this Mayo site. A couple presentations showing up on You-Tube. Does anyone have this condition? What has helped getting the inflammation under control and ease the flare ups of bladder pain/UTI's?