I was diagnosed with IC several years ago and had the same symptoms as you, the urgency and frequency. It would also wax and wan. I never thought the horrible pain I was having was IC pain because I didn’t have the same symptoms as I had before. It was really a surprise to me when my Dr. told me it was IC. I am back to the urgency and frequency. Apparently there are 2 different flavors, the pain or the frequency/urgency.