Hi JK, yes you are right. Extra weight is good for bones. (But not good if you have osteoarthritis which I also have:( My B.M.I. is within the normal range.
I do also think my endocrinologist has my best interests at heart and these specialists spend all those years in medical school and my doctor is the head of the osteoporosis department at this hospital and she does loads of research, so I still think she knows much more than I'll ever know and she has seen many many patients who have fractured from osteoporosis (sometimes as a result of refusing to take drugs). It is still a worry though.