There are many ways of making the switich, one being wean off paxil, then start prozac; another being both at once, one declinng while adding to the other. You seem to be caught in between...the anxiety you feel may not be from withdrawals but from the underlying anxiety breaking through because the prozac has not yet started to work. You might ask your doctor to cover you in the interim , for a week or so, with low doses of daily klonopin...then see in about two weeks how the prozac works alone...