After many problems with bf, particularly me being poorly (infection on abdomen after bad section) and being on antibiotics, which unfortunately made lo unsettled, and lo losing weight, and well if I'm honest I just couldn't do it despite trying to battle on. So I sadly put Millie on formula.
My problem though is all the newborn teats seem too fast, but something is making her tired as I find it hard to get anything more than 2oz down her, the hv said she is either a snacker as it will take me about 2 hours to get a full feed down her and then she is ready for a bottle again. Or as she is a bit rattly which the hv is almost sure its mucus but she wants her chest listened to as concerned about her tiring easily and wants to rule it out.
I am currently using Dr Brown bottles but Millie seems to be sucking hard on them at first as she will get marks round her mouth but it will flow out of one side of her mouth, so the hv mentioned maybe an orthodontic teat would be good.
We know that somehow she is having enough as she has put on 12oz in a week, so I'm not concerned about that, but its quite, well very tiring trying to keep up with all the feeds, I suppose she is bf but on a bottle at the minute, as having well over 6 bottles a day.
Now I am concerned about going and buying more bottles and hv said try and use bottles I have but maybe find teats to fit (we all know how hard this is!!!!)
So I have ttctn bottles and Dr Browns, I have been researching and found that Nuk do the orthodontic teats, so not sure whether to try the teats on the bottles, someone has told me they fit Dr Browns (but I tried Avent and they fitted but leaked) or to just cut my losses and try the Nuk bottles.
I'm sorry if this is long, I'm completely at a loss as my D's was a guzzler and would have had his milk out of a bin 
Any help would be most appreciated.