Hi welcome to the health care magic For frequent urination problem you have ruled out UTI by urine examination and you have ruled out diabetes... Now other causes should be focused for frequent urination... -severe anxiety -prostate enlargement compressing bladder -diuretic drug intake -bladder might be overactive secondary to injury, obesity, neurological problem etc... According to cause further specific treatment given For rule out above causes after examination according to need investigation done like USG, urodynamic investigation etc... Avoid excess tea, coffee, alcohol etc... Take care Hope your concern solved Consult urologist for examination and discuss your case