Sagres - to answer your question I am formula feeding as well and have been since day 4 under medical advice (that is how low my supply is). I am planning on doing both for a while. If it starts to affect Ethan too much I am going to put Ella on the bottle completely. I don't want him to resent his little sister.
Oh gosh, you are having a rough time of it aren't you, I didn't realise it that low from the start. Sorry it is going this way, I think you are doing a great job and Ella is lucky to have such a great mum