Dea, No I'm not old enough to be the original "old lady" haha.
No, I have never tried to do a self portrait. My dolls always have much better bodies than me. Their are many other more interesting subjects to creat. I stuffed my primitave doll with dense poly batting. I don't like sawdust. I have made some dolls with sawdust but don't like it. You have to wet it to make it pack and then you run the risk of it not drying fast enough and it might mold.