She Cries With No Apparent Trigger

If those come up empty and this is a repeating pattern, brief episodes that start and stop abruptly, unconnected to anything sad that you can identify, what's often behind it is pseudobulbar affect, also called emotional lability: episodes of crying or laughing that don't match what's actually being felt inside, caused by damage to the brain circuit that normally regulates emotional expression. It's common after strokes and shows up in several forms of dementia, most often vascular dementia and Alzheimer's disease in later stages. Estimates in Alzheimer's disease range from roughly ten to forty percent, a wide range that reflects how often it goes unrecognized or gets mistaken for depression rather than a true rate.

• Pseudobulbar affect. The distinguishing features matter, and they're worth watching for even though only a clinician can make the actual call. Pseudobulbar affect episodes are brief, typically seconds to a few minutes, and stop as suddenly as they started. She may not describe feeling sad afterward, or may not acknowledge the episode happened at all, and a specific tell worth watching for is a laughing spell that flips into a crying one, or the reverse, within the same short window, since that pairing is characteristic of pseudobulbar affect and much less typical of depression. Her mood between episodes generally doesn't stay low.
• Depression. Depression, by contrast, persists across days or weeks, comes with reduced interest, appetite or sleep changes, and is present nearly every day rather than in short bursts.

Depression is also common in dementia, it affects a meaningful share of people living with the disease, and it is treatable, so the goal here isn't deciding the crying is "nothing." It's naming which of the two this actually is for the clinician, since the two are treated differently, and telling them what you've noticed between episodes, not just during them, is often what makes that distinction possible.

Check for pain before anything else, since it's the most common and the most fixable driver once verbal report is gone. What you can see is guarding, grimacing, and a change when she moves. What you cannot see is the clinician's to find.

1. Check for pain first: a grimace, guarding a body part, or resistance to touch in one spot.
2. Have a go-to sensory redirect ready, a playlist, a soft blanket, a specific photo, since episodes often end faster with a shift in input than with words.
3. Comfort first, sense-making later or never. She doesn't need an explanation from you before she's allowed to feel better.

Note how long each episode lasts, whether laughing spells happen too since they're part of the same spectrum, and whether her mood between episodes stays generally okay or stays low. Brief and unconnected points one direction. Persistent low mood across most of the day points toward depression, and that distinction is worth bringing to the appointment rather than resolving alone.

Print the one-page log if you want somewhere to keep this, and take it to the appointment.

Some tears are just tears the brain produces without a reason attached, and not finding the reason isn't a failure on your part. You are not required to solve every wave that passes through her. Sometimes staying next to her while it passes is the whole job.

This is what the tracking is for. Dates, times and specifics turn "something's off" into something a clinician can act on in a ten-minute appointment.