Your topic really caught my eye...I never equated jealousy with anxiety, or considered it to be an anxiety issue, but I do think that they are very connected!
I was in anxiety recovery when a trust issue was discovered in my marrriage. It really set me back, and jealousy became a new and unwelcome problem for me.
Through more counselling for myself as well as marriage counselling, we made it through, but it was a challenging time to say the least.
Insecurity is of course a part of anxiety, and I do believe that those of us with anxiety have a double burden in dealing with jealousy.
I still find myself fighting the negative thoughts and what-if questions that come up in regards to the old hurts in our history...but I try to immediate counter them with positive affirmations of how things have changed for the better now.
I don't know if these will be of any help or not...I wish that I had known about
them a few years back...I still may check them out...
http://www.hindyassociates.com/book.html
With compassion,
S.C.