well i thought it my be due to not exhaling right on ascent, then last night it happened during the three minute blackout(covering lights) during a night dive......which i thought might be due to a bit of axiety/stress.......but has anyone ever experienced any chest pain at all while diving if so whats your experience.....it seems that as fast as it comes i can controll it by focusinf on my breathing....will most likely get it chwecked out....but any tips from anyone???.......keep in my mind im a healty male, active diver who is in their late 20's......i say active diver 5-10 dives a week