Wendy, I hope you get some positive responses because your situation is very similar to mine. I am soon to be 55 and about two years post-menopausal. I'm only 5'1" but am big boned with a lot of muscle weight. I have never been thin, nor obese. Just solid. I weigh heavy and cringe every time I get weighed at the doctor's office (I refuse to own a scale). I know I will never weigh what I did when I was younger and don't expect to. At 54, I am healthier and fitter than I was back then.
My main problem is the visceral abdominal fat so common in women after menopause. Nothing I do seems to be helping to get rid of this. I am careful about what I eat without obsessing, ride my bike or trainer as often as I can, do resistance training regularly. It's very frustrating to see no change. I am more concerned about the health aspect of the excess fat weight as opposed to being worried about how my clothing fits or what size it is (not that I don't think about that).
Weight loss/control is a whole different ball game after 50. I hope those who have had success will reply.
Health is the thing that makes you feel like now is the best time of the year--Franklin Pierce Adams