not because of my bad housekeeping skills, the fact I don't insist dd wears shoes in the house or because there is something sinister in my parents garden that she is allergic to BUT because she inherited from DH who inherited it from HER side of the family.
I know I would be unreasonable but I am tired of the implication that it is somehow my fault every time she is sick.
Really I don't think see it as a Fault/Blame issue but she seems to.
Wow, that would really annoy me, too. I personally would end up saying something, even if just dropping it into conversation that it was hereditary from her father, as there is no history of asthma on your side (assuming there isn't!). Your MIL will be able to work the rest out for herself.
YANBU, BUT the MIL is old, set in her ways. She is not going to see things differently, no matter what your DH or anybody says. She is resolutely blind to something obvious to you.
What does it matter what she says? You know she's mistaken, let it go.
I had this with DC this morning, btw! DS5yo kept saying DD's birthday is 10 days away (it is in fact 11 days away). Fierce arguments between the DC about the number of days, no matter how many times I said "What does it matter what he thinks?! He's FIVE years old, let him think whatever he likes."
YANBU. When DS was 3 months he got Strep B. MIL was telling everyone that would listen that it was because I didnt BF. I was in such a state about him being poorly it really upset me. I have never forgiven her and its the basis of our strained relationship now.
She sounds like a silly old bint. I would definately say something. Dont suffer in silence like me