I'd definitely keep doing it too - in fact, I'd time my shopping so I HAD to feed while I was out!! I was pretty lucky when I was bfing my DD and got only encouraging looks and smiles. Good on you for doing what is normal and natural.

We formula feeding mamas cop a fair bit of flack too for different reasons. Its a shame people can't just look at a child being fed and see how lovely it is, however its done, rather than find a way to be offended.