Hi MN.
I gave birth 5 days ago to my much longed for baby boy. He's my first baby and I want to do the very best I can for him.
Unfortunately I was not very successful with breastfeeding. My nipples were torn up and bleeding by day 3. So on day 4 we caved and got a hand pump and some formula so I could try and rehydrate in order to pump. I did manage to give him all my colostrum at least. 
I got DP to give him the formula bc I was so upset that I just cried. My midwife didn't really help as she made me feel kind of judged for pumping rather than having him on the breast.
He has had a total of 3 formula feeds, with the rest being pumped breast milk. He is a hungry/sucky baby and gulps it down happily.
I thought that we had finally cracked feeding today but then he's had a very watery yellow nappy that smells of vinegar.
I've looked around on the internet- have I made my son sick by combined feeding methods??
Now that I'm up and worried about him I can't stop and now I'm even freaking out about the noises he makes when he breathes! 
He is only 5 days old and I already feel that I have failed him.
Please help 