For some reason the APs suppress this kind of thought...in cbt they actually think it triggers hallucinations so it's something we worked on but it was so much milder and easier to deal with on the meds...anyway one of our techniques was setting aside a specific time for worrying like at 5pm on Friday I will deal with the problems of the week for an hour. Trust me you won't forget but it becomes less of a time sink if you restrict it to a specific time and it helps to include other peoples opinions when you do figure it out...