By the time most women reach their early 40s, something starts to shift. Sleep gets lighter. Energy does not bounce back like it used to. Cycles become less predictable. Mood feels harder to manage. If this sounds familiar, you are not imagining things, and you are certainly not alone.

These changes are often linked to the changes that happen during perimenopause, the transitional phase before menopause. It typically begins somewhere between ages 40 and 47 and can last several years. Understanding what is happening in your body is the first step towards feeling more in control.

What is actually going on?

During perimenopause, ovarian function gradually changes. Ovulation becomes more erratic, which means certain health markers fluctuate rather than decline in a smooth, predictable way. This uneven pattern may contribute to many of the symptoms women notice.

Some common experiences include irregular or heavier periods, disrupted sleep, changes in mood or anxiety levels, brain fog, joint discomfort, reduced energy, and shifts in how your body feels. Not every woman experiences all of these, and the severity varies widely.

The tricky part is that these symptoms overlap with other conditions. Thyroid changes, iron deficiency, low vitamin D, and poor sleep quality can all produce similar feelings. That is why a thorough clinical assessment matters before drawing any conclusions.

Why bloodwork is the starting point

A good health consultation starts with pathology. Your clinician may request a panel that includes markers relevant to your clinical picture, thyroid function, iron studies, metabolic markers, and vitamin levels. The specific tests will depend on your symptoms and health history.

The reason this matters is that many women who present with what looks like perimenopause also have at least one other factor contributing to how they feel. Identifying those factors early means nothing gets missed, and any management plan, if deemed medically appropriate, is built on accurate information.

What are the options?

There is no single answer that suits everyone. Depending on your blood results, symptoms, and health history, your clinician may recommend one or more of the following approaches:

Lifestyle adjustments. Strength training, adequate protein intake, and sleep hygiene become particularly important during this stage of life. These are not token suggestions. For many women, structured lifestyle changes make a meaningful difference to how they feel.

Nutritional support. If bloodwork shows low iron, vitamin D, or other markers, addressing those gaps can improve energy, mood, and sleep quality.

Clinical management. If your clinician determines that a medical approach is appropriate, they will walk you through what that involves, including how it is monitored and adjusted over time. Any treatment plan is individually assessed and only recommended if it is deemed medically appropriate for your situation.

Further investigation. Sometimes the right next step is more testing, a referral, or a period of monitoring before making any changes.

What we would not recommend

Not every approach that sounds appealing is well supported. Your clinician will be honest about what the evidence supports and what it does not. Part of a good consultation is hearing what is not recommended, and why.

You are not “just getting older”

One of the most frustrating things women hear in their 40s is that their symptoms are just part of ageing. While these changes are a natural process, that does not mean you have to push through them without support.

If your sleep has been off for months, your energy is consistently low, and your usual strategies are not working, that is worth investigating. A clinical consultation can help you understand what is driving those changes and whether there are safe, appropriate ways to support your wellbeing.

References

  1. Australasian Menopause Society (AMS). Information Sheet: Perimenopause. AMS; 2024.
  2. Harlow SD, Gass M, Hall JE, et al. Executive summary of the Stages of Reproductive Aging Workshop + 10: addressing the unfinished agenda of staging reproductive aging. J Clin Endocrinol Metab. 2012;97(4):1159-1168.
  3. Davis SR, Lambrinoudaki I, Lumsden M, et al. Menopause. Nat Rev Dis Primers. 2015;1:15004.

Individual results vary based on your unique biology. Not all consultations result in a treatment plan. Your clinician may recommend lifestyle changes, further investigation, referral, or monitoring as the most appropriate next step.

If you would like to explore this further, book a consultation with one of our clinicians.