Distinguish between obsessive thought to normal worry, help!

I know a lot about CBT to treat OCD, but i have a problem to convince myself that specific thought is obsessive.

From what I've read obsessive thought is defined as recurring and annoying thought etc, but also normal worry can be the same definition. For example if my child is in real danger it's normal thing to have "obsessive thoughts" about it. My obsessive thoughts usually are not about abnormal thing (like murder etc.), but about future circumstances that maybe destroy me, or maybe my car jumped because i harm someone and not because the road is bad etc.

In the meantime, I have not found a way to convince myself that specific thought is not a real normal worry, so every time i try to use methods from CBT, to fight my obsessive thoughts, inner voice tells me that I am trying to escape from reality.

please help!

In my experience, distinguishing between real "concern" and obsessive anxiety/ocd thoughts can be based on different criteria.

Irrational thoughts that have little bases in reality (i.e now evidence to support them). I don't think this is what you are talking about.

But then there are those that have some reason to be there, but get blown out of proportion. For instance, let's say your young son is going to a baseball game with the neighbor's kid. The parents are taking them to the game, so they have adult supervision.

it's quite naturally to be a little concerned that something might happen, but in normal circumstance most people trust that everything will be ok, and that's it. For someone who suffers an anxiety disorder, they might ruminate all night about what could happen, and be almost incapable of doing anything while their child is at the ball game. This is an actual circumstance my friend was in years ago. She suffered some sort of anxiety disorder and would constantly worry about domestic problems, to the point where it made here sick.

I think the idea is that some fears are natural, but how intensely they affect the individual and how prolonged they are separate them from normal worry.

I don't think all of these kind of anxiety problem are OCD, though.