Not necessarily about the events...becaue a lot of people go through stress and don't reach this.
Maybe more how much control you wanted to exercise over said events? Maybe your approach to dealing with reality when things don't go as planned? Maybe, with the events that happened, there were too many things you were trying to control at once and keep perfect and trying to control the outcome of even if it wasn't something you had much control over...and this is the reality of it, letting you step back and see "whoa, wait a minute...I went to far with my methods of handling stress (not the stressors themselves)." Maybe trying to solve other peoples problems, taking in responsibilities out of your control to keep the situation around you peaceful when you felt helpless? Something?
Stress can CAUSE a latent DP dragon to "roar", but if not this time then something else. There are things you probably need to discover about yourself and your interactions with people and with handling the ups and donws of life, that are the root of the problem. Stress set it off but was almost like a "hey, we have a problem in here...it's been going on for a while. fix it."
Like your car. Say you notice a slight leak of oil one day. And you don't fix it. And it keeps getting worse and worse until there is no oil left in your car and the engine won't work without the lubrication, and the engine breaks down.
You can stand there all day and say "well if there HADNT been that stress on the engine..if there HADNT been that shortage of oil...it wouldn't have happened. If I HADNT have had the stress in my life, it wouldn't have happened." Etc etc. Well, in one sense you're right- the accident (dp) itself wouldn't have happened, but the problem would still be there. The leaky gasket that's letting out the oil in your car, would still be there. And the onset of the dp is NOT that you didnt have enough oil this time in your engine (or that you didn't get to think or whatever), it's something else kind of far away from the engine that needs to be examined. The engine...or your conscious self...is just the part that finally breaks down when you spend all those years saying to yourself "oh, i don't really need to change this or that about myself."
The leaky gasket doesn't really affect YOU conscioulsy until it causes oil to leak and eventually breaks down your car.
And you could pour more oil in...but the problem still isn't fixed and it would just break down again later.