Thanks for the reply, it's good to hear.
I have been of reduced calories for longer than I can remember and I'm no stranger to my local gym/pool, although even at my most intense exercise regime (5 X 1km swim, 3 X 1hr gym, 1 hour personal trainer, ! hour swimming lesson and a round of golf every week), it made absolutely no difference at all except for my whole body just aching continuously).
Your last sentence sums it up, we're all so very different. I will find the answer to my particular conundrum . . . . . eventually.