dementedma bobbly what exercise gives you the buzz? Have tried aerobic type classes( hideous) and pilates/yoga which was ok but no buzz. Quite like swimming and walking but they dont burn many calories
I do several things.
Boxing - I work at a desk all day and find that punching stuff is great for "unfolding" my body and stress relief. And it's mixed up with lots of other intervals of core and aerobic exercises.
HIIT classes - so it's always varied and changing with bodyweight and kit, not just Jane Fonda style stuff!
Weights - a programme devised by a PT who I meet up with every few weeks for a coaching session. Am loving the feeling of strength and capability this gives me! Also great for ongoing calorie burning.
(I have worked out that short and sharp intervals are my forte, I can't bear the long slow monotonous stuff. All of these classes ^ have a range of people in them, old, young, fat , thin, new, experienced...I am in the fat and old range!)
And lastly I ride a bike. But this is mostly for (fairweather) fun, not fitness, inasmuch as I might whoosh down hills, but I've no compunction about getting off and walking up them! I am lucky to love in beautiful countryside though - it's not so great if you are in the middle of a city!