Lots and lots of health reasons - these were posted on a midwifery list today (cited form an article by Maureen Minchin)
"Artificially fed babies are at greater risk of: gastroenteritis, inflammatory bowel disease, Crohn's Disease, coeliac disease, idiopathic hypertrophic pyloric stenosis, necrotising enterocolitis, obstructive bowel disease, appendicitis, inguinal hernia, food allergy and intolerance, insomnia, colic, colitis, respiratory disease, bronchiolitis, bronchitis, pneumonia, wheezing, ear infections, tonsillectomy, diabetes, childhood lymphoma, cot death, meningitis, autism, schizophrenia, urinary tract infections, rheumatoid arthritis, tooth decay, orthodontic defects, speech problems in boys, hypoxia and bradycardia for prems, possible long-term consequences for appetite control, unfavourable lipoprotein profiles, tragic outcomes for children with enzyme deficiency disease, organ transplantation, PKU.
Additionally artificial feeding is associated with higher risk to the mother of pre-menopausal breast cancer, ovarian cancer, cervical cancer, osteoporosis, anaemia, hip fracture."
You know it is best, for both of you. You know that you can do it - you are doing it! Chances are baby will still wake in the night even if formula fed, and bottles are a lot more efforrt to sort out (especially if you have a bay screaming at you when you are trying to do it) - so what would you gain by stopping? this way you know you are doing the very best you are able to for your baby! It DOES make a difference - the long term implications for this are vast. You are doing a brilliant job - and it IS a bit of a fag, but it is worth it.
Does that help at all?