Sleeping on your stomach often helps problems with sleep apnea, which is often something that isn't something patients know they have. If you stop breathing in

Sleeping on your stomach often helps problems with sleep apnea, which is often something that isn't something patients know they have. If you stop breathing in your sleep, it can make your body enter a "flight or fight" state that makes your heart race and adrenaline rush through your system. It also decreases o2 saturation and the poor sleep quality negatively impacts daytime mood and concentration. Consider getting a sleep study, at least to rule that out as the root cause