Anonymous wrote:Oh give the OP a break. They have an arrangement in whcih the MIL lives with them- guessing it's a big sacrifice for the OP evn though she gets great benefits.
OP, no advise, just sorry - sounds tough.
OP again. Thanks everyone who offered support and input.
I talked to DH about it today and he was very understanding, especially since he knew it really rubbed me the wrong way when yesterday she told me, "your breast milk is too thin, when can I start giving baby something heavier?"

He agreed our bedroom can/should be an MIL-free zone, starting with keeping the door shut. She still knocked and came in (once he said ok) to give him something tonight, but she didn't hang out. I'll be stepping up the closed-door policy for sure, and hopefully that will help.
As one PP suggested, I do give her curt answers or medical-type explanations when it comes to her concerns about baby's welfare/health, including blaming the pediatrician. Sometimes I change it up and attribute to my own mom, who's a family doc.
To answer another PP's question, I am not from their culture. DH moved to the U.S. around the age of 9 or 10 so he's pretty Americanized. Once or twice when I was super annoyed with MIL's comments I said something to the effect of, "well lots has changed in the past 35 years, and here we do have the benefits of first-world medicine and amenities..."
Anyway thanks again for the responses. Today was a little better than yesterday.