No. Your general demeanor around your baby is what can cause crankiness and whatnot in your baby. Your milk isn't bad when you're stressed. Sometimes you can't help but be stressed, you're only human!

I'm not sure, but I know with both my pregnancies I was very stressed after they were born with things that were unrelated to them/being pregnant and it never affected my milk supply at all. I think everyone is different, though

I believe it does affect your supply. I was really stressed out when I gave birth n as much as I tried to breastfeed my milk starting drying lil by lil until nothing came out n I do blame it on my stress n a lil bit of PP depression