overactive bladde
"In the past week, suddenly I started having frequent urination and painful urges to urinate.  It became so bad that I was going every couple minutes.  I ended up in the ER.  My urine culture came back fine, by blood tests came back fine, my X-Ray and CT scans were both negative.  They assumed I had just passed a kidney stone and sent me home.  The frequency and urge persisted and I wasn't getting sleep and stopped going to work.  FINALLY, the doctor prescribed me Flomax.  I have an appointment to get a bladder ultrasound tomorrow and to see a urologist in two weeks.
They think there is a possibility I may have Intersistial Cystitis.  

I just took my first dose of Flomax and have no idea what to expect.  Suggestions?"