Frequent urination. (copy enclosed).

I hv horrible frequent urination which is badly disturbing my daily life for more than 7 years. Many times After passing urine, again I have urgency within seconds or minutes and feel discomfort in pelvis area. Feel tired and week every time even after sleeping of 8 hrs. I hv consulted many urologists and gone through all the urine and blood realted test's and all are normal. done pelvis ultrasound and the report is normal except unemptied bladder inspite of passing urine thrice during ultrasound and uroflowmetory also done which reports slow and disturbed speed of urine (copy enclosed). Now the urologist has suggested for cystoscopy which I want to avoid for any alternative if any plz advise me. thanks.