Please go for an USG KUB with Prostate including post voidal residual. This may give a clear picture of the situation or else if your bladder gets full it will create pain and discomfort.
Next Steps
please get it done today itself.
and in emergency,
you will require a Feedy tube / k 90 to be inserted into your urethra to empty the bladder if there's a stricture.
Health Tips
since it's national lockdown you can call the doctor and ask for an ambulance at home to take you to hospital.