Your symptoms are suggestive of bladder outlet obstruction. With preliminary diagnosis of primary bladder neck obstruction. It is a known entity in young men . MCU films are not done which need to be done. Any element of neurogenic bladder dysfunction needs to be ruled out by an Uro dynamic study. Mean while you can start a course of Alfa blocker to improve your urine flow rate .
Next Steps
Video urodynamic studies . And start Alfa blockers
Health Tips
Get examined by an urologist .