i'm breast feeding eva and my milk has come in properly now. at first it took her a while to get used to feeding but today she wants to be fed constantly! sometimes less than an hour in between!! i feel tired cos of it and feel like i can't keep up - cos nobody can help feed her etc. do you think it is to early to express milk? can i overfeed her if she is wanting to feed so much? don't know whether to switch to formula if she needs this much milk!!!