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Common problems

Tired all the time?

Hea asks the questions a GP would, in order: urgent signs first, then sleep, mood, daily life and medicines. You get a note for your GP and the tests NICE and the NHS say a GP may arrange.

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Free in the beta · Works inside the AI you already use · Last reviewed 5 November 2026

Sleep, stress, low mood, low iron, thyroid, blood sugar, medicines: the NHS lists many causes of tiredness. It's hard to know what matters, and a short appointment goes fast. Hea asks the questions a GP would, in order, and shows which tests a GP may arrange.

How Hea helps

Urgent signs first Today

Hea first asks about the few signs that need help today. If one applies, it tells you where to go, in the NHS's own words.

Sleep, mood, life and medicines Today

How you sleep, whether anyone has noticed you snore loudly or stop breathing in your sleep, the two questions about mood NICE suggests, what's going on in your life, and every medicine you take.

A note and the tests a GP may arrange Today

Your answers go into a note for your GP. You also see what NICE and the NHS say a GP usually checks for tiredness, such as blood tests for anaemia, blood sugar (HbA1c) and thyroid, each with its source.

Blood tests at home Soon

The blood tests a GP often starts with, done at home and kept with your earlier results.

What it looks like

Example · fictional data

Hea, I'm tired all the time — help me work out why

Note for my GP
The problemTired all the time, worse in the afternoonsHow long4 monthsSleep on most nightsI wake up too early and can't get back to sleepMedicines I take nowNoneUrgent signs I was asked aboutI answered no to allMy questions for the doctorWhich blood tests do I need, and when will I get the results?
Fictional example. The note uses only your answers and names no condition.

What you’ll get

  • A note for your GP with your answers in order
  • What NICE and the NHS say a GP usually checks for tiredness, with sources
  • Questions to ask, such as: could my medicines, my sleep or my mood be playing a part?
  • Where to go if an urgent sign applies, in the NHS's words

Safety first

If you're struggling or having thoughts of ending your life, call Samaritans on 116 123, call NHS 111 and choose the mental health option, or text SHOUT to 85258. If you are in immediate danger, call 999.

Questions people ask

Why am I so tired all the time?

The NHS lists common causes: not getting enough sleep or insomnia, an unhealthy lifestyle, stress, depression, life challenges such as bereavement or a new baby, hormonal changes such as pregnancy or the menopause, illnesses like glandular fever and COVID-19, and some treatments and medicines. If it's been going on for a while and not getting better, and you don't know why, it may be a sign of a medical condition: see a GP if you're worried.

When should I see a GP about tiredness?

See a GP if you've been feeling tired for a few weeks and you're not sure why, or if your tiredness affects your daily life. Also see one if you're tired and have other symptoms, such as weight loss or mood changes, or you've been told you make gasping, snorting or choking noises when you're asleep.

What blood tests check for tiredness?

The NHS says you may need tests, such as blood tests to check for anaemia, diabetes or an overactive thyroid. Your GP decides which tests fit your symptoms after asking about them and examining you.

Why am I always tired with no energy as a woman?

The NHS lists hormonal changes, such as pregnancy or the menopause, among the common causes of tiredness. It also links a lack of energy with palpitations, shortness of breath and pale skin to iron deficiency anaemia, and says heavy periods and pregnancy are very common causes of it. A GP can check for anaemia with a blood test.

Could my medicine be making me tired?

It can be one of the causes: the NHS lists some medical treatments and medicines among them. Hea asks which medicines you take and quotes what the US FDA product label mentions about tiredness. Don't stop or change a prescribed medicine without talking to your doctor or pharmacist.

Can Hea tell me why I'm tired?

No. Hea doesn't diagnose. It asks the questions a GP would, writes a note for your GP and shows what NICE and the NHS say a GP usually checks. Your GP examines you and decides on tests.

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Related

ThyroidThyroid “normal” — but you don't feel itResults in range, but you still don't feel right MoodLow mood, anxiety or poor sleepLow mood, worry or poor sleep, put into words for your GP ResultsYour blood test results, explained — with your historyYour blood test results, with your history

Everything Hea can help with →

Sources

  1. NHS: Tiredness and fatigue, Page last reviewed 2 June 2023
  2. NHS: Iron deficiency anaemia, Page last reviewed 26 January 2024
  3. NICE NG222: Depression in adults: treatment and management (recommendation 1.2.1), Published 29 June 2022
  4. NHS: Where to get urgent help for mental health, Page last reviewed 26 April 2023