What are your non-negotiables?  What are the things you must do for yourself and what are the lines that you just won’t cross?  What would cause you to hit a limit and change your behavior?   I am 5’4″ and a 1/2″ (every half inch counts!) and there was a time in my life when I weighed 165 lbs.  Most people said I carried it well (perhaps they were being kind), but I wasn’t happy and I didn’t have any energy.