I too am an overweight sufferer of PF. Congrats of you weight loss progress!! I just wanted to jot you a note to let you know that i have read a couple of books and your plateau youve reached is an excellent sign!! You havent been losing any weight lately because your body is adjusting - very common sign. You will kick right through this barrier and when you do, your metabolism will be higher. . .I got PF before I gained weight .. .still can't work out much because of my pain. . .And I dont lose weight unless I am working out steadily. . .Lowering intake of food does nothing but make me hungry.
Best of luck to you and congrats!!