Well, if you don't have to get up several times at night it and the urine is concentrated in the morning it means that you are producing the antidiuretic hormone at night which is a good sign.
However, if the urine looks cloudy, brown or red, if it smells odd I would suspect infection.
If not, high bladder pressure, overactive detrusor or kidney reflux or kidney or bladder stones or residual urine could be the problem.
Definitely ask for a referral for the urologist and insist on urodynamics and ultrasound.
Good luck