Anxiety

Generalised Anxiety Disorder (GAD): Signs and Treatment

By Jess, Mental Health Writer 12 July 2026 7 min read

If you worry about many things, most days, and find it almost impossible to switch off — even when you know the worry is out of proportion — you may be experiencing generalised anxiety disorder (GAD). It’s common, exhausting, and very treatable.

What GAD is

GAD involves persistent, excessive worry across a range of areas — health, work, family, finances, everyday responsibilities — that’s difficult to control and lasts for six months or more. Unlike a phobia focused on one thing, GAD’s worry is broad and shifting: as soon as one concern eases, another takes its place.

Common signs

  • Chronic, uncontrollable worry about everyday matters
  • Feeling restless, keyed up or on edge
  • Being easily fatigued
  • Difficulty concentrating or mind going blank
  • Irritability
  • Muscle tension
  • Sleep problems

Many people with GAD have felt like “a worrier” their whole lives and assume it’s just their personality — when it’s actually a treatable condition.

How it’s diagnosed

There’s no single test. A GP or psychiatrist makes the diagnosis based on your history and symptoms, and rules out other causes (thyroid problems and other conditions can mimic anxiety). Our anxiety self-check can be a useful starting point for reflection.

Treatment

GAD responds well to treatment, usually a combination of:

  • Cognitive behavioural therapy (CBT) — the best-evidenced psychological treatment, targeting worry patterns and avoidance.
  • Medication — where appropriate, prescribed and monitored by a doctor (see our guide to anxiety medication in Australia).
  • Lifestyle support — sleep, exercise and reducing caffeine and alcohol all genuinely help.

For persistent or complex anxiety, our online psychiatry service provides specialist telehealth assessment Australia-wide. Book an appointment with a referral, or read more about our anxiety care.

This article is general information, not medical advice. In a crisis, call Lifeline on 13 11 14 or 000.

Jess — Mental Health Writer

Jess is a mental health writer at Psychiatrists Australia, creating clear, compassionate content to help people understand mental health conditions and navigate their care options.

Ready to take the first step?

Book an appointment or send a referral today. Our team will be in touch within one business day.