Understanding the TMS Dip: Why You May Feel Worse Before Better
By Lance Demaline • June 26, 2026

Quick Answer: The "TMS dip" is a term patients use for a stretch during a TMS course where they feel worse - flatter, more tired, or more emotionally raw - before they start improving. It's widely discussed in patient communities, but it isn't a formally defined clinical event, it doesn't happen to everyone, and it isn't a required part of getting better. Most importantly: a mild rough patch is different from a significant worsening of your mood, and the second one is something to tell your care team about right away, not wait out.
If you're partway through TMS and feeling worse instead of better, searching for answers at 11pm, that's an understandable place to be. The "dip" gets talked about a lot online, sometimes in ways that are reassuring and sometimes in ways that make it sound inevitable or even necessary. Neither is quite right. Here's a straight account of what people mean, what's actually known, and - the part that matters most - how to tell a normal rough patch from something you shouldn't sit on.
What people mean by the "TMS dip"
The phrase comes from patients, not from a textbook. It usually describes a period, often somewhere in the first few weeks of a TMS course, where someone feels temporarily worse: lower mood, more fatigue, more irritability, or a sense of being emotionally "stirred up." For people who experience it and then improve, it can look in hindsight like a dip before an upswing - hence the name.
It's worth being clear that this is patient-community language. You'll see it on forums and in support groups far more than in clinical literature.
Is the TMS dip real, and is it expected?
Two honest answers here.
First, plenty of people describe something like it, so it's not imaginary. Mood during any depression treatment can fluctuate, and a temporary rough stretch is a real experience for some patients.
Second - and this is the part the internet often gets wrong - it is not a well-established, well-studied clinical phenomenon, and it is not something you're supposed to go through. Formal research on a defined "TMS dip" is limited. Many people complete a full course without ever feeling worse along the way. So if you're not experiencing it, nothing is wrong; and if you are, it doesn't mean you're on some required path that everyone walks.
Be skeptical of anyone - online or otherwise - who tells you that feeling worse is a sign the treatment is working. That's not a reliable rule, and treating it as one can lead people to ignore a genuine downturn.
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Why it might happen
Because the dip isn't formally defined, explanations for it are mostly proposed rather than proven. A few that clinicians and patients commonly raise:
- Emotional "thawing." Depression can flatten feelings. As that flattening lifts, some people temporarily feel more, including difficult emotions they'd been numb to.
- The grind of a daily schedule. TMS means frequent appointments over several weeks. That logistical load can be tiring on its own, independent of the treatment itself.
- Normal fluctuation. Depression rises and falls week to week for many people regardless of treatment, so a bad stretch may overlap with TMS without being caused by it.
These are reasonable theories, not established facts. Your provider can speak to your specific situation far better than a general list can.
The distinction that actually matters
This is the most important section, so read it carefully.
There's a difference between a mild, temporary rough patch and a meaningful worsening of your symptoms, and you shouldn't try to sort that out alone or assume it's "just the dip."
Tell your care team promptly if you notice any of the following:
- A clear, sustained worsening of your mood rather than a brief off day
- New or increasing thoughts of hopelessness, self-harm, or suicide
- Trouble functioning, sleeping, or keeping yourself safe
- Anything that frightens you or feels like more than you can manage
If you're having thoughts of harming yourself or feel unable to stay safe, treat it as urgent. Contact your care team right away, and in the U.S., you can call or text 988 to reach the Suicide and Crisis Lifeline, or go to your nearest emergency room. Reaching out is the right move, not an overreaction - and it's exactly the kind of thing your providers want to know about during treatment.
What to do if you're in a rough patch
If you've checked in with your team and what you're feeling is a manageable, temporary dip, a few things tend to help:
- Keep your appointments. Stopping mid-course on a bad week is one of the most common regrets patients describe. Talk to your provider before making any change to your plan.
- Tell your team how you're feeling anyway. Even if it's mild, they'd rather know. They can adjust, reassure, or simply track it.
- Go easy on the rest of your schedule. Daily treatment is real effort. Lightening other demands where you can is sensible, not lazy.
- Be careful with forum doom-scrolling. Support communities can be genuinely helpful, but they can also amplify worry. Use them for connection, not for diagnosing yourself.
Does feeling worse mean the treatment is working?
No. This is a persistent myth, and it's worth stating plainly. Feeling worse is not evidence that TMS is working, and feeling fine throughout is not evidence that it isn't. Responses vary, the path isn't the same for everyone, and the only reliable read on your progress comes from your clinical team tracking it with you over the full course.
When in treatment does the dip tend to happen?
People who describe it most often place it in the earlier weeks, but there's no fixed timing and no guarantee it happens at all. If you're tracking your own mood, share what you're noticing with your provider rather than comparing it to a timeline online.
Should I stop TMS if I feel worse?
Not on your own. Stopping a course early is a decision to make with your provider, not in reaction to a single bad week. If you're feeling significantly worse or unsafe, that's a reason to call your team immediately — which is different from quitting.
Is the dip a side effect of TMS?
It's not a formally recognized side effect the way headache or scalp discomfort are. It's a pattern some patients report, with explanations that are still mostly theory. Your provider can tell you which of your experiences are likely treatment-related.
How long does it last if it happens?
There's no set duration, because it isn't a defined event. For people who experience a rough patch and then improve, it's typically temporary — but "temporary" isn't a promise, which is why staying in contact with your team matters.




















