ohhh TG!!! I sure do feel for you. I've had PF in the past and it is horrible! And having not been able to train at all for over a week do to my back is making me cranky too. So I know how you feel. UGH it sucks!! hang in there, and be smart w/your training.
Oh boy life does hand us lemons sometimes... sigh...
But lets look on the good side. Other than that you have your health, and are able to ride and swim. It could always be worse!

take care

Denise