I think you may need more help than most of us can give, I do know that you are never to baby them when they act anxious, this just reinforces their feelings of fear. Since this goes against our natural way of behaving it takes some real effort on your part to overcome this, and the OCD definitely complicates matters. We do have a member, who is a behavioral training specialist, and she offers specialized training for your pets, her YT member name is scootiebootie, and this is her profile page.
http://www.yorkietalk.com/forums/mem...tiebootie.html
Desensitivity training can be very helpful, but it does require specific steps in order to be effective.