I also sometimes get guilty if I'm feeling good. I also experience crashes. I can feel them coming on from a mile away and do everything I can to avoid them. I just try to roll with the punches and get out of the "guilty" mindset. I do deserve to feel good and don't need to feel guilty about it (repeat 1000 times).
jacq, best of luck with your new T! How exciting! How nervewracking! Let us know how it goes.
sunny