My four-year-old had been getting stomachaches that seemed totally random. Some mornings he'd curl up and cry, some afternoons he was completely fine and feral as usual, and his entire vocabulary for the whole thing was 'my tummy hurts' followed by pointing at a region that covered roughly his entire torso from collarbone to knee. As medical histories go, it was not a strong one. As a parent, you are simultaneously certain something is wrong and completely unable to get a usable description of it.
Our pediatrician asked the obvious question — 'are there any patterns?' — and I gave the obvious useless answer: 'it really seems random.' I drove home annoyed at myself, because 'it seems random' is what people say when they haven't actually looked, and I knew it. The problem wasn't that there was no pattern. The problem was that the only witness was a person who measures time in 'before snack' and 'after the show' and cannot be cross-examined.
Building a log for an unreliable witness
So I started jotting notes on my phone whenever it happened: rough time, what he'd eaten, whether he'd slept, how bad it seemed on a scale I was inventing as I went. After about three weeks I had another pile of unstructured chaos — only this time it was about a small person who couldn't read it back to me or correct my guesses. I had the same problem I'd had with my own migraine notes, except now I couldn't even ask the patient to clarify.
I'd already been using the Organize My Messy Symptom Notes Into a Journal My Doctor Can Actually Use prompt for my own headaches, so I just pointed it at my kid instead. I set relevant_context to 'patient is a 4-year-old, notes recorded by a parent, includes meals and sleep,' ran it on Claude Sonnet 4.6, and let it sort the mess. Sonnet's restraint mattered even more here — I absolutely did not want a model speculating about a toddler's insides or scaring me with possibilities, and it didn't. It built the table and held up the patterns without ever once reaching for a cause.
- The table lined up every episode against what he'd eaten and how he'd slept the night before
- 'Patterns observed' noted most episodes followed mornings with dairy-heavy breakfasts — a neutral observation, no diagnosis
- 'Worth tracking next' suggested logging bathroom timing, which turned out to matter a lot
- 'Most significant to report' picked the two worst episodes so the pediatrician got signal, not my full anxious diary
- It wrote 'unknown' for the days I'd forgotten to note breakfast, instead of inventing one
What the pediatrician did with it
I brought the one-page journal to the appointment and our pediatrician actually said 'oh, this is great' — apparently most parents arrive with 'it seems random' and a helpless shrug, which is exactly where I'd started. The dairy association wasn't a conclusion and nobody treated it like one, but it was enough for her to suggest a short, simple, doctor-supervised trial of cutting back and watching closely. Within two weeks the morning episodes mostly vanished. Not a diagnosis from a prompt — a starting point from a prompt, confirmed by a real doctor doing a real, cautious test.
The trick that made me actually log it
The hard part with a small child isn't running the prompt — that takes a minute — it's capturing the data at all, because tummy aches happen at the worst possible moments, like mid-tantrum or thirty seconds before you leave for daycare. What finally worked was lowering the bar to almost nothing: I made a single note titled 'tummy log' on my phone and just dumped one ugly line whenever it happened, no formatting, no complete sentences, often just 'cried after milk, ~8am, bad.' Three weeks of ugly lines is exactly the kind of input this prompt is built to eat. The whole reason I could afford to be lazy in the moment is that the cleanup is automated at the end.
If you've ever tried to keep a 'proper' log for a kid and given up because it felt like homework, that's the unlock: log badly, organize later. The prompt does not judge your formatting and does not invent the days you missed — it writes 'unknown' and moves on, which keeps the whole thing honest enough to hand a pediatrician.
The honest caveat bears repeating: a journal is only as good as the notes you feed it, and with a kid you have to actually write things down in the moment because you will absolutely not remember by dinner, let alone by the appointment three weeks later. But if you're parenting a small unreliable witness, grab the Organize My Messy Symptom Notes Into a Journal My Doctor Can Actually Use prompt on Prompt Dock and let it find the shape you can't see. It works just as well on a toddler's tummy as it does on my own head, which says something nice about a prompt that was never designed for either.