Yesterday I experienced this lower abdominal pain without warning.  It first started with me having to urinate, so I had to hold it for a few seconds.  Then after peeing out of no where I started to feel clammy and got intense lower abdominal pain, when I got home I started to get chills and a slight fever.  It lasted all night and then this morning I felt better, but had a sore feeling in my lower abdomen.  This has happened to me before, it only last a few hours of pain and then soreness.
Hi and thanks for the query, It would be appropriate for a urinary tract infection (Cystitis or bladder infection) to be excluded in this case. Doing a urinary dip stick, urine culture and sensitivity test could be very appropriate. However, a complete blood test is important in searching for raised white blood cells which could be an indirect indicator of a bacterial infection. A clinical evaluation by your family physician could be very important in actually orienting the diagnosis, and elucidating the actual cause of the fever. Other blood tests and even an abdominal ultrasound could be helpful, depending on the findings of the physical examination. Thanks and best regards, Luchuo, MD.