blue balls?

Hi, I experienced something odd today. Just a week into my denial period, with plenty of stimulation but absolutely no cage on, I went to the bathroom (to pee). Afterward, I began feeling pain that others have identified as blue balls when reading about it. However, I’m not sure how this connects to using the toilet. It’s never happened before for me, even though I’ve gone over a week in previous times, although my chastity practice has only been off for a few months now. What is the best approach here? Should I cut back on stimulation or seek a release?