Feeling Off Around the Same Date Every Year

Feeling sad or unsettled around the same date every year is called an anniversary reaction, a well-documented response to a meaningful loss or hard experience. It can surface before you consciously connect it to the date, and it doesn’t mean you’re failing to heal. Grounding first, then brief bilateral stimulation (BLS), the technique behind EMDR, can ease it.

Late September rolls around and you can’t shake a low mood, even though nothing in your week has gone wrong. You’re more irritable, sleeping worse, or feel strangely raw for a few days. Only later do you connect the dots: it’s close to the date your mom died, or the week everything fell apart three years ago. Your calendar didn’t do anything, but part of you remembers anyway.

Why do I feel this way around the same date every year?

This pattern has a name: an anniversary reaction. According to the VA National Center for PTSD, some people have an increase in distress around the anniversary of a difficult event, ranging from feeling mildly off for a day or two to a much stronger reaction. Some of these dates are shared and public, like a hurricane or an attack the whole country remembers. Others are entirely private: the date a relationship ended, a diagnosis came in, or someone you loved died, known only to you.

It’s also not a fringe idea or a new one. A 2025 systematic review in Death Studies, pulling together 58 studies on bereavement anniversaries, calls this one of the most reliably documented patterns in grief research. Feeling it again this year isn’t a setback. It’s a normal, well-studied part of how loss and hard experiences settle into memory.

Why does this hit before you even remember what day it is?

Sometimes you clock the date first and the feeling follows. Just as often, it’s the reverse: the mood, the tension, or the tears arrive first, and you only trace it back to the calendar afterward. Psychologists have a term for that: implicit memory, memory that shapes how you feel without a deliberate act of recall, according to the APA Dictionary of Psychology.

EMDR’s own theory, the Adaptive Information Processing model, offers one explanation. Intensely emotional experiences can get stored in a raw, easily-triggered form, according to EMDRIA, EMDR’s professional association, and a cue connected to that material, including a specific time of year, can reactivate it before you consciously place why. Patterns like this usually have roots in an earlier experience, and when that experience was losing someone, our guide to grief and EMDR goes deeper on that specific connection.

Researchers have measured this directly. A 1999 study of Gulf War veterans in the American Journal of Psychiatry found their worst month of the year matched the anniversary month of their trauma far more often than chance would predict. Veterans who showed this pattern reported meaningfully more severe PTSD symptoms. Their spouses, reporting independently, noticed the same pattern.

You don’t need trauma of that scale for a date to carry weight. If it’s a specific image or moment popping up around this time rather than a general mood, our guide on random memories surfacing out of nowhere covers that closely related pattern. If a song, smell, or place is what actually sets it off, When a Song or Smell Drags Up a Memory walks through that version.

Ground yourself before you work with anything

Before you engage with the memory or the feeling at all, spend a minute somewhere calmer. Picture a real or imagined place where you feel safe, or run a quick grounding check: name five things you can see, feel your feet on the floor, slow your exhale. Staying inside your window of tolerance, the zone where the feeling is present but you can still think clearly, is what makes the steps below useful instead of overwhelming.

Go slow: one date, one memory

Anniversary reactions can feel like they’re about an entire year, an entire relationship, an entire loss. That’s too much to hold steady while you work with it. Pick one specific moment tied to the date: the phone call, the last conversation, the morning you found out. Keep sessions short, just a few minutes, and expect to return to it more than once.

Know your stop point

If your distress rises above a 7 out of 10 and doesn’t settle back down, stop. Use grounding, and consider working with a professional rather than pushing through alone. That’s useful information about how much weight this date is carrying, not a sign you’re doing something wrong.

A short bilateral stimulation practice for an anniversary reaction

With those three pieces in place, here’s a short round of bilateral stimulation, the rhythmic left-right technique at the center of EMDR:

• Rate it. On a 0–10 scale, how strong is the feeling right now, just touching the edge of the specific moment you picked? Note the number.
• Bring it lightly to mind. The moment, not the whole loss. Touch it, don’t dive into the most intense version of it.
• Add bilateral stimulation. Move your eyes smoothly left and right for 20 to 30 seconds, tap your knees or shoulders left-right (the “butterfly hug”), or use alternating left-right audio tones if you have headphones.
• Pause and notice. Breathe. Notice whatever shifted, a bit of distance, a duller edge, without forcing anything.
• Repeat 3 to 5 short rounds, checking in between each one.
• Re-rate. Check your number again. If it’s easing, that’s a good place to stop for today. If it climbs instead, stop and ground yourself; that’s fine to leave for another day.

Pacing yourself through rounds while you’re already feeling raw is one more thing to manage than most people want. EmEase, a self-guided EMDR app, runs the same left-right technique for you with a moving on-screen target or alternating tones, paced however you like, in the web app. The beginner’s guide to self-guided bilateral stimulation covers pacing and choosing a method in more detail.

Does this actually help, or does the feeling just need to run its course?

Both things can be true. A 2020 meta-analysis of 15 laboratory studies in the Journal of Experimental Psychopathology, pooling 942 participants, found that eye movements meaningfully reduced the vividness and emotional intensity people rated for a distressing memory held in mind. That’s evidence for taking some heat out of a specific moment tied to the date, not a way to skip grieving or processing the year behind it.

There’s also a more hopeful thread in the research. A 2024 study in OMEGA, a research journal on death and dying, by psychologists Madeline Bruce and Terri Weaver, found anniversary periods bring stress for some people and genuine personal growth for others, sometimes both at once. Feeling off this time of year doesn’t only mean something is wrong. It can also mean you’re taking stock of something that mattered.

When does this need more than a quick practice?

This practice fits an ordinary hard anniversary: a date that stings and unsettles you for a few days. It’s not enough on its own if:

• The date is tied to real danger, like abuse, an assault, or combat.
• The reaction disrupts your sleep, work, or relationships for more than a couple of weeks.
• You notice dissociation (feeling unreal or checked out), flashbacks, or panic that frightens you.
• During the practice above, distress climbs past a 7 out of 10 and won’t settle.
• The date brings on hopelessness or thoughts of harming yourself. That’s outside what self-guided practice is built for. A licensed professional, or our crisis resources page, is the safer next step.

In any of these, a therapist trained in EMDR can help you work with what the date represents far more safely than doing it alone. If trauma is the clearer thread than grief, our guide to EMDR and PTSD covers what the research shows. For the wider set of trigger-and-memory tools, our hub on calming triggers and distressing memories is a good next stop.

Dates don’t forget on their own schedule. However this one shows up for you this year, it’s not proof you’re stuck. It’s proof something mattered enough to remember.