Why Has My Anxiety Gotten Worse in Perimenopause

This page reflects our understanding of mental health topics as of 2026. If you are reading this at a later date, some details may no longer be current, so please verify anything important against up to date sources. If you notice anything that needs updating, we would welcome you letting us know.

You have always been fairly steady, or maybe you have lived with some anxiety but managed it well. Then, somewhere in your forties, something changed. Worry arrives out of nowhere, your heart races at night, small things feel overwhelming, and you wake at 3 a.m. with your mind spinning. You might not even connect it to hormones at first, especially if your periods are still fairly regular.

Increased anxiety is one of the most common, and most overlooked, experiences of perimenopause, the transition years before periods stop completely. Understanding the connection can bring relief and point toward effective support.

It Could Be a Lot of Things

Thyroid changes. Thyroid problems become more common in midlife and can cause anxiety, a racing heart, and sleep problems that mimic perimenopause. A simple blood test can check this.

Midlife pressures. Caring for teenagers and ageing parents at the same time, career demands, relationship changes, and financial pressure often peak in the same years, which can leave people feeling like they have nothing left to give.

Disrupted sleep. Night sweats and lighter sleep in perimenopause lead to tiredness, which lowers tolerance for stress. Many people describe waking up with racing thoughts.

Existing anxiety or ADHD. People with a history of anxiety, premenstrual mood changes, or ADHD often notice symptoms intensifying during this transition.

Heart palpitations. Hormonal shifts can cause palpitations, which can be frightening and set off anxiety about heart health. The general pattern is explored in Why Does My Heart Race for No Reason. New palpitations should always be checked by a doctor.

When It Looks More Like Perimenopause-Related Anxiety

During perimenopause, levels of estrogen and progesterone rise and fall unpredictably, sometimes dramatically from month to month. These hormones interact with brain systems involved in mood, stress, and sleep, so the fluctuations can directly affect anxiety. Progesterone in particular tends to have a calming effect, and its decline can leave some people feeling more on edge.

Signs that perimenopause may be contributing include:

• Anxiety that is new, or noticeably worse, starting in your late thirties to early fifties.
• Changes in your menstrual cycle, such as irregular timing or heavier or lighter periods.
• Hot flashes, night sweats, or new sleep problems.
• Mood symptoms that fluctuate with your cycle, sometimes resembling premenstrual mood crashes.
• Irritability, brain fog, or feeling on edge without an obvious reason.

Perimenopause can last several years, and symptoms often vary over time. People who are also going through menopause-related changes in other ways, such as after surgery or cancer treatment, may experience these shifts more suddenly.

What Can Help

• Talk to a doctor. A family doctor or menopause-informed practitioner can discuss medical options, including hormone therapy and other treatments, and check for thyroid or other causes.
• Track symptoms. Noting mood, sleep, and cycle changes helps you and your doctor see patterns.
• Protect sleep. Cooler bedrooms, breathable bedding, and consistent routines can reduce sleep disruption.
• Move regularly. Exercise supports mood, sleep, and stress regulation during this transition.
• Reduce alcohol and caffeine. Both can worsen anxiety, hot flashes, and sleep problems.

Getting Support at Pacific Maple Psych Centre

If anxiety has become harder to manage in midlife, therapy can help alongside medical care. Cognitive behavioural approaches have good evidence for anxiety, sleep, and other perimenopause symptoms, and therapy can also support the broader life changes that often come with this stage.