My DD is 3 weeks old and BF. When she was about 1 week we started giving her 1 bottle of formula a day at about 6/7pm. About a week ago I started feeling really guilty about the amount of time BF took (I have an older DD) and started giving more bottles (about 3 a day - 2 in the am and the one at 6pm with me BFing the rest of the time including through the night) with the aim of weaning her on to formula.
However she started being sick with the formula after 2/3 days and I felt so bad that I've gone back to exclusive BF apart from the 1 bottle at 6/7pm.
So since yesterday I have been feeding her whenever she wants to increase my supply again. But how do I know when things are back to normal? Sometimes she seems frustrated at the breast and I don't know if it's because my milk has dried up? I have always fed through the night as I thought that was when you produced milk. Have I ruined things? How long will it take to get back to normal?