Anyway, um, I formula feed and yes, my baby has been very healthy, has had one cold (compared to my breastfeeding friend's baby's 4 colds) - so I'd like to say that being a bit of a shut-in internet reading weirdo with no friends is another excellent immune-system booster for your baby.
HOWEVER, I am paranoid as fudge that she will be overweight, is overweight, has no appetite-regulation mechanism and is a bit thick. (Actually, that last thing I'm blaming on her father's genes.) Just because of what I read, all those months I was reading obsessively about breastfeeding, and the disadvantages of ff. Well, and the fact that she is pudgy and weighs in at about the 99th centile. I think I'll only grow out of this when she's a gawky 16 year old. If I hadn't spent 6 hours a day pumping about 30mls of breastmilk to supplement the formula for the first 4 months, I might have had a nicer time in the early days. But now I sort of just laugh at myself. Mumsnetters, incidentally, when I was in the depths of my despair, told me I'd forget all about this one day, and I didn't believe them at all. I ALMOST believe them now.
Sorry, have been very gobby on this thread. But the fact that I still read the 'breast and bottle feeding' part of these boards, and not much else, sort of reveals that I still do seek some kind of reassurance.