However, what we do know is that people with Obsessive-Compulsive Disorder are the least likely people to actually act on the thoughts, partly because they find them so repugnant and go to great lengths to avoid them and prevent them happening.
The primary obsessive fear will spill over into feeling responsible for preventing the consequences of not checking and the guilt that would follow for allowing the loss of life and expensive property destruction.
Simple measures such as getting enough sleep, eating good meals and finding ways to deal with everyday stress can make a big difference in how you feel.