I sometimes dwell on things that happened 10 years ago.  I know it's ridiculous and it's pretty minor stuff like a disagreement I had with someone but my mind won't stop thinking about it.  For hours at a time.  I don't want to think about it and try to distract myself but can't even watch the basketball game that was on tonight without constantly going back to this long ago situation that has absolutely no significance at all anymore.   I don't know why I can't stop my mind from thinking about it non-stop for hours!!!

Anyone else deal with intrusive thoughts like this?