I think it can become a habit and even a little addictive. Identifying a problem and coming up with a plan to deal with that problem is what happens to me.
Sometimes I'll be playing some music and I'll think I'm rubbish or I'll notice a mistake. I will then obsessively practice that bit until I've got it right.
I guess it depends how much the worrying is impacting on your life. Mindfulness training may help?

The bigger question is, why should you be different to anybody else. In fact when you stop worrying a bit perhaps you could take some of mind. Please, please, pretty please? James

Perhaps it's just a case of prioritising. Sometimes the little things really don't matter as much as you let them. But it's also about learning to have or develope a 'shit happens' mentality. It could also be about learning to relax and breath, a clear mind will usually find solutions, a stressed one won't.

My wife used to worry.Id say to her " lets sort the problem out first .If we can't sort it then worry about it."We have never not solved our problems,hence no need to worry "

Because everything is a lot to think about

Quotes :

"worrying is using your imagination to create things you don't want"

"what worries you, masters you"

"worry never robs tomorrow of it's sorrow, it only saps today of it's joy"

"no amount of worry can solve a problem"

" 95% of things worried about, never happen "

AND - if you change "can't", to "won't" , it will be clear it's a choice.

I don't know why....but a shrink would help.

Meditation has helped me with that.

worry only hurts you and helps nothing. you can do something about it and I think you should ie get some professional help.