Hi !!
I stopped after 12 days due to several issues, the biggest being mastitis that wouldn't clear so going on double strength antibiotics!
anyways, first don't feel bad about stopping, you did it for 7 weeks which is brilliant. I know you didn't say you felt bad but I know it was a total moral dilemma for me to stop and I still feel a bit guilty!
We did have problems with windiness and pooping on formula, but Ive now gone to hipp (only yesterday) and its improved already - id recommend reading about it
about the boobs - avoid hot water in the shower, take painkillers, and a tight bra!
I hope you have lots of breast pads too! I used two on each side and lansinoh to help my nipples heal (they were an awful mess!)
Oh and be prepared to not want anyone touching you!
The worst passed in about 2-3 days for me but I had red spots from the mastitis too. I still leak now though!!