Frequent urination for three years had a uti and x-ray of bladder was normal. what other tests are needed?

See answer: Most common causes of longstanding urinary frequency in an otherwise healthy female without diabetes or kidney disease include: excessive fluid or caffeine intake, overactive bladder, interstitial cystitis, and small functional capacity bladder aggravated by stress/anxiety. Helpful tests would include: urinalysis, 3-day intake and voiding diary, residual urine check, and cystoscopy/hydrodistension.