I forget words and walk into rooms not k

First, one thing to stop doing: "it's probably early dementia" is not a safe working assumption — brain fog from sleep loss, low mood, thyroid or blood problems, medication effects, or early menopause can look similar from the inside, and only an examination plus a few simple tests can tell them apart. Since your annual checkup is already coming, book nothing new yet — use that visit, and bring a written log. The decision rule tonight is simple: gradual and stable for weeks → the checkup, with notes. Sudden, or worse within hours or days → urgent care.

This is not a diagnosis, and I am not changing any medicine. Nothing here replaces being examined. Do not start, stop, or change any medicine or supplement on the back of this reply.

What "perimenopause" fits — and what a clinician checks instead

There is no home test that separates these. The honest split is:

• Hormonal: typically a gradual drift over months, with other signs alongside it — periods changing, hot flushes or night sweats, sleep broken by night sweats, mood swings, new aches. Often worse in the week before a period. Hot flushes at night wreck sleep, and broken sleep alone produces "I forget words" within days.
• Sleep-deprivation: you are the caregiver on a school week with an older relative nearby. Waking in pieces, a hot room, a screen at bedtime, and a brain that has no recovery window looks exactly like hormonal fog.
• Low mood / stress load: low mood, dread, or constant low-grade stress blunts attention and word-finding just as well.
• The things a clinician rules out: thyroid, low iron/anaemia, low B12, diabetes, medication effects, sleep apnoea, and — rarely — something neurological. This list is why the checkup matters, and it is not a prediction about you.

Your job this week is not to pick a side. It's to arrive with evidence.

1. What you tried, and what to do instead

Tried: assuming it's early dementia. Better: a two-week log. One line a day, takes 60 seconds — sleep hours and how many times you woke, hot flush or sweat, mood 0–10, caffeine, alcohol, biggest stressor, and one sentence on what you forgot today. Bring it to the checkup. This is the single most useful thing in this reply: vague "I've been forgetful" gets a different answer than a dated log, and it protects you if the fog turns out to be something treatable.

Tried: nothing else yet, so start with the boring levers. Tonight, 20 minutes total, no cooking required:

• Fix one night of sleep first (under 15 min): cool the room, shades, phone out of the bedroom, and a written "tomorrow list" on paper by the bed so the circling thoughts have somewhere to go. Do not solve the whole week tonight.
• Protect a small food routine from what's already in your kitchen: a protein at each meal (eggs, yogurt, beans, tofu, fish), water through the day, and iron-containing foods (beans, lentils, dark greens, meat). No powders, no new supplements, nothing bought online without a prescription.
• Cap alcohol — it worsens night sweats and sleep quality; for two weeks, less or none is a cheap test.
• Write down one thing at a time when you're juggling — phone notes, sticky notes, a list for the school run. This removes the memory load without changing your brain.

2. Constraints and the avoid list

• Don't start, stop, or change any medicine, including "for energy, memory, sleep, or hormones." Bring the list to the checkup instead — including anything bought without a prescription. Changes are the clinician's call, at the visit.
• Don't buy supplements or powders online, and don't add several at once: you won't know which one helped or hurt, and some interact.
• Don't research dementia symptoms online tonight. Late-night symptom searching raises anxiety, and anxiety itself worsens word-finding.
• Don't wait months for the checkup to book if the fog worsens — see the tree below.
• Don't make yourself the family's designated driver for anything that matters until this is looked at.
• Don't protect the secret. If it gets heavy to carry alone, tell one person.

3. Decision tree — when to stop DIY

Any of these today → urgent, same-day care, or your local emergency number if it is sudden and severe:

• Sudden confusion, or suddenly not making sense — even briefly.
• One-sided weakness, a drooping face, slurred or lost speech, sudden vision loss, sudden severe unsteadiness — note the time it started and say it first. Sudden facial droop or limb weakness can be a stroke; call your local emergency number now.
• Suddenly worse within hours or a day, or confusion with fever, burning urination, or being unusually drowsy.
• A seizure, or being hard to wake.
• Falling or getting lost in a familiar place.
• Hearing or seeing things others do not, or frightening beliefs.
• Saying life is pointless, or any talk of not wanting to be here — stay with them, don't leave them alone, and get help now.
• Losing weight you didn't intend, or being unable to manage basic self-care.

This week, not tonight — book the checkup earlier or ask for a phone appointment: the fog is clearly worsening week on week, you cannot do your usual caregiving reliably, or you are taking something new that could be involved.

Stay on plan, review at the checkup: gradual over weeks to months, steady rather than suddenly worse, and someone else has not noticed anything frightening. Bring your log, your full medicine list, and note the change has been there since roughly when.

Bring to the checkup (screenshot this)

• Your two-week sleep and symptom log.
• Every medicine, supplement and dose you take — including over-the-counter and anything bought without a prescription.
• When it started, and whether it tracks your cycle or your hot flushes.
• The questions worth asking, out loud: "Could this be thyroid, iron, B12, sleep or medication? What would you like me to do if it gets worse before our next meeting? Should anything I already take be reviewed? What would count as a reason to come back sooner?"
• Whether anyone can stay with the kids or your relative on the day you go.

What success looks like in 24 hours

Not a cure — a working system. Success tonight is: the log exists and has today's line on it, the room is cool and the phone is out of the bedroom, and the checkup visit has the log in your hand before you're asked. If you can name three things that happened today without the notes, that's a good day — and it does not settle the question. The question settles at the checkup, with the log.

One thing I'd need to help further: which country or city you're in — so any door I point you to is one you can actually reach.