Frequent voiding, blood sugar 117 (not fasted) blood pressure normal, urinalysis performed and everything was negative. Slight pain in lower left pelvic/ abdomen region. Could this be kidney stones or pre diabetic?

Voiding. There are a lot of other medical conditions that may cause you to void frequently such as Lack of a hormone made by the brain called antidiuretic hormone. Conditions related to your bladder and other medical conditions. You really need to seek medical attention.