Ok ..I really hate to admit this even though I really am anonymous here but I sometimes spit when I talk as well.. What is up with that? :P anyways I think I have an excess amount of saliva haha..but it doesn't happen all the time and when it does I quickly overlook it.. I think all people have spit on somebody at one time or another..
Would it help to chew gum? or maybe eat something with carbs to absorb some of the salive ..try not to focus on that and do keep acknowleding all the progress you have made..