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“My moods swing up and down”
A short answer
Moods that swing higher and lower than feels normal for you are exhausting, and they're worth taking seriously. They can have several causes, including bipolar disorder, borderline personality disorder, depression, hormone changes, a medical problem or substances. The pattern matters most: how long each swing lasts, what sets it off and what happens to your sleep and energy. A careful evaluation looks at that pattern over time, so your plan fits what's actually going on.
The pattern tells the story
"Mood swings" can mean very different things. A few clues a provider will ask about:
- How long a swing lasts. Hours to a few days, or a week or more?
- What sets it off. Often something in a relationship, or seemingly nothing at all?
- Sleep and energy. Have there been times you needed much less sleep but felt full of energy?
- What's in between. Do you return to your usual self between swings?
- Everything else. Thyroid problems, some medications, alcohol and drugs can cause or worsen mood symptoms.
Something to think about
Which sounds closest?
Tap the one that's closest. Nothing is saved or sent. This won't tell you what you have; it helps you know what to mention.
Distinct periods of high energy, racing thoughts or less need for sleep, followed by lows, can be a sign of bipolar disorder. Bring every "up" stretch you remember to your evaluation, even if it felt good at the time.
Read about bipolar disordersIntense moods that shift quickly, often tied to relationships and a fear of being left, can be part of borderline personality disorder, among other causes. It's worth talking through at your evaluation.
Read about borderline personality disorderMood changes that line up with your period, or with perimenopause, are real and treatable. Tracking them for a few months helps a lot.
When mood follows your cycleDepression can show up as irritability, restlessness and anger, not just sadness. It's worth mentioning at your evaluation.
This isn't a diagnosis. Only an evaluation with a qualified provider can tell you what's going on.
Bring this to your visit
Notes that make the pattern clearer
Tick what you can bring, then copy your list. Nothing is saved or sent.
Myth or fact? Mood swings
Choose an answer for each to see the explanation. Nothing is saved.
1Everyone who has mood swings has bipolar disorder.
Myth. Mood swings have many possible causes. Bipolar disorder involves distinct episodes of elevated and low mood and energy, usually lasting days to weeks.
2Feeling great, wired and needing little sleep can be a symptom worth mentioning.
Fact. Milder "up" periods (hypomania) can feel productive, so they're easy to miss. Family and friends often notice them first.
3Borderline personality disorder and bipolar disorder are the same thing.
Myth. They can overlap and can occur together, but bipolar disorder involves episodes of clearly elevated mood, which borderline personality disorder doesn't.
What to expect
What happens next with us
1Start your intake packet
Fill out our secure intake packet. Once it's submitted, we'll verify your insurance and call you to schedule your appointment.
2A careful evaluation
We map your moods over time: how long they last, sleep and energy, triggers, health, substances and family history.
3Making sense of it
We explain what we think is driving the swings and why. Sometimes the answer is clear; sometimes it takes a little more time to watch the pattern.
4Your plan
If medication could help, such as a mood stabilizer, we explain the options and decide together. If skills-based therapy would help, we help you find it.
5Regular follow-ups
Moods need watching over time. We check in regularly and adjust carefully.
The science: how we checked this
Sources
How we checked this
- Written in our own words from the sources above, checked October 25, 2026.
- Signs are described in plain language and aren't a diagnostic checklist.
Other starting points