I'm so sorry your treatment results have "gone south", Keri. Please don't beat yourself up though, it's just the nature of this beast we live with. Concentrate on feeling better now, then you and your doc can decide what to try next. As I'm sure you know, what works for one person may not work for another, plus there are no guarantees.
Don't lose hope -- 2009 is coming and that "magic pill" may come along! Take care........