I have to add that there's nothing like calm. Today my tire's special nut broke as I was getting help changing tires, and I was calm about seeing the automobile service manager and working out an arrangement.
When worry subsides like today, isn't it inspiring?
Yes I do and it annoys me to no end. Once they start to go round and round they are hard to stop. Once I start to think something I don't want even if I try to think something else it usually comes up as an associated thought and I'm back to the original one again. Only cure seems to be to do something entirely unrelated so I can start a different thought. This means setting aside what I am doing for a bit and I don't always want to do this. It doesn't always work either, depending on my mood (emotions control thoughts) some times the unwanted thought just comes back with the renewing of the original project or thought. I know that this can be broken but it just seems so difficult to be bothered if I'm tired. So I use relaxation to cope and ride it out.
Worry, pain, sickness all cause sadness for me and all rob me of time better spent doing something else. Some of this I can bull through by changing projects, some I just have to live through. It is probably normal, I just don't want it. CBT does help with the emotions and thoughts but not with personality, that I have to recognize and change on my own.