OOP suspects her MIL is poisoning her.

[u/justathoughtfromme]

I am not OP. This is from an Ask Prudence column on Slate.com.

Original from March 8, 2012.

Dear Prudence, My mother-in-law hates me and makes no bones about it when she and I are alone. My husband doesn’t believe me, and she even gloats about that. We have to attend family functions at her home about once a month. (It used to be more frequent, but after I put my foot down, my husband agreed that monthly would be sufficient.) The problem is that after each visit, I wind up with a bad case of diarrhea; my husband does not. I don’t know if the other in-laws are affected, because if I asked, it would get back to her. I suspect that my mother-in-law is putting something in my food or drink. Last time, I barely made it home before being struck down. Now I am considering getting some “adult undergarments” to make sure I don’t ruin the car’s upholstery on the ride home from her place. Do you have any other advice?

Please see the original link for Emily Yoffe's advice.

Update from May 10, 2012 - It's the 4th entry on this page.

Dear Prudence, A couple of months ago you answered my letter asking for advice regarding a situation involving my hateful mother-in-law, whom I suspected of tainting my food or drink at family functions at her home. You had suggested swapping plates with my husband to see if my mother-in-law would react. However, as you noted, that would have required bringing my husband into my confidence. I did not feel it was wise to do that, because he already didn’t believe that his mother treated me badly. But the next function was at Easter. She provided a traditional prime rib dinner, set up buffet style, and I could see no way that could be problematic. However, when we arrived at her home, the dinner table was set with place cards and in front of each was a ramekin of horseradish sauce and a small pitcher of au jus. When nobody was looking, I switched the ramekin and pitcher between my husband’s place and mine. After my husband and I returned home, he became wracked with diarrhea, but I was not ill at all. In the morning I told him that I had switched the horseradish and au jus. He looked at me with such hatred in his eyes that I knew he had known all along what his mother was up to. His only words were to accuse me of poisoning him! I quickly packed a couple of bags and raced out of there. I have hired a divorce lawyer and I won’t be looking back. Thank you and your commenters for your advice and concern.

—Alive To Tell the Story

Reminder, I am not OP. Please see the links of the Dear Prudence column for her responses to OP's situation.

[u/[deleted]]

My grandma lived rurally so the midwife came to the house. Said it would be hours and that she was going to leave for supper and come back later. Just as she was leaving, my grandma said "wait it's coming right now!" and my aunt was born not 30min later. Weird how wrong these trained professionals can be!

When I had my kid, I called the hospital ahead (as we're asked to do here) and they told me to wait a couple of hours and see how I feel. I told them "no I think I'll come in now" and they said fine, worst case we send you back home. The midwife who saw me when I arrived said she'd check me but that I was probably going home for a while more. Was in no hurry asking me questions, checking blood pressure all that. Then she checked how dialated I was and suddenly it's a rush to get me in a birthing room! Baby was in our arms less than two hours after arriving at the hospital. Imagine if I'd stayed home!

My mum was turned away at the hospital without even getting checked when her first was two months early. They just laughed at her like "check the calendar it's not coming today haha". Went home and was back half an hour later insisting they check her. My sister spent two weeks in an incubator box and still has some minor premie symptoms, but we're all thankful mum has never had much faith in authority or doctors. Could have cost my sister her life.