Listener question: doing well and now... fears

Listener question:  I wonder if it would be possible to discuss what seems to going on for me just now.  I seem to be doing well (better than in a long time) and then without notice I’m plunged into my greatest fears (plus some).... this has been going on for a few nights, is beyond uncomfortable and I would appreciate your thoughts.  I’ve absolutely loved the Real course and have taken a lot from it.  Thank you in anticipation xx