Welcome to HCM.
There are few possibilities like urinary tract infection
, stone in the urethra
or some problem with the prostate
I advice you to have plenty of fluids, Cranberry Juice will help in fighting UTI.
Urinary analysis should be done along with this culture and sensitivity testing will be helpful.
I advice you to see physician with report, for examination and for exact diagnosis.
Hope I have provided the information you needed.
Wish you good health. Take care.