Suggest Treatment For Sharp Abdominal And Groin Pain

I m a Female, 25yrs old. About a week ago, I had to hold urine for about 4hours during hospital rounds..The urgency went away then returned suddenly, I had an accident trying to find a bathroom.During voiding, I felt a sharp supra-pubic pain. Since then, every time my bladder is fulling to full, I feel sharp pain in lower abdomen and groin area. It has gradually worsened over the past week. Some times I don t feel the urge to void, I feel the pain first before the urge. When I have voided the pain reduces, but there s persistent dull pain in the lower abdomen that lingers for a few hours. Feels like bloating. I do not have increased frequency or urgency, my urine is normal. During voiding, some small amounts of retained urine comes out in a palsating manner after the main stream is over, about 1-2times. when I strain to push the rest out I feel severe sharp pain in my groin. Could it be a UTI? I have no chronic medical conditions.