I Am A Fifty One Year Old Male Who Is

I am a fifty one year old male who is experiencing pressure, and slight discomfort, in my lower left abdominal area. Last night I had a strong urge to urinate, but was often unable to do this. Otherwise, I am able to use the bathroom normally. The pressure lasted for about three hours this morning, disappeared for about ten hours, and just returned two hours ago. I am scheduled for inguinal hernia surgery in two weeks. Thank you for your assistance.