Thanks for query,
this type of pain is common when you keep it retained for long time inspite of having urinary reflex.
Sometimes due to stone in the kidney
you may get pain in umbilical region while urination.
In urinary infection also you get this type of pain.
If you have taken heavy sicy and fried food then too you get pain.
Go for urine check up if pain persists with every time passing urine.
Take plenty of water and alkalizing syrup.
Ok and bye.