He is fine, thanks, just a bit of a red mark - poor little things, and how stupid of us (me and DH!). By the sounds of it, everyone does it once!
Dr's not great, no-one accepts there is a problem, as until 3 weeks ago he had been steadily gaining weight. i think it will take for him to lose weight before anyone takes it seriously. i'm going to try Lisa 1/2tsp sugar in his next feed and see how it goes!