Hi, Wendy,
First of all, I'm not a medical doctor so I'd encourage you to talk to your own doctor about how to go off the HRT and possible side effects (if any) that you could experience.
As far as your second question, that's a hard one. It all depends on your metabolism. Age tends to slow it down, whether you're on HRT or not. I'd suggest that you take a hard look at your diet and exercise patterns to see if they need to be changed in order to lose weight. Start incorporating weight-bearing exercises and lifting light weights into your routine since muscle burns more calories than fat.
Take care and keep us posted!
Dorain
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