I agree with all of the previous posters. I can't comment on what you're wearing, as I can't see it, but if the boots are too sexy, that could be drawing unwanted attention. One thing I will say, when wearing an above the knee skirt with boots - to work - ALWAYS, ALWAYS wear stockings - specifically, tights the color of the boots or skirt. Ideally, they should be in the same color family (i.e. black boots and tights with a colored skirt, etc). Nude color or stockingless looks, well, nude. The flash of "bare" skin becomes the focal point. You don't want that in the office. After a significant weight loss, it is natural to want to show it off. Just be sure to do it appropriately. That way, no unwanted comments will be coming your way.
And congratulations on your achievement!!
And congratulations on your achievement!!