Fibromyalgia

Seven questions people ask, put to Google AI Overviews, Google AI Mode and ChatGPT in November 2026.

Got the NHS facts right

75%

9 of 12 answers

2 different1 didn’t say

Got the NHS facts right

3 of 4

1 different

Got the NHS facts right

3 of 4

1 didn’t say

Got the NHS facts right

3 of 4

1 different

Got the NHS facts rightNovember 2026

AI Overviews 3 of 4

AI Mode 3 of 4

ChatGPT 3 of 4

History starts when there is a second month to compare. November 2026 is the first.

Cited NHS or accredited sources

78%

14 of 18 answers with sources

4 other UK only

Cited NHS or accredited sources

4 of 6

2 other UK only

Cited NHS or accredited sources

6 of 7

1 other UK only

Cited NHS or accredited sources

4 of 5

1 other UK only

Cited NHS or accredited sourcesNovember 2026

AI Overviews 4 of 6

AI Mode 6 of 7

ChatGPT 4 of 5

History starts when there is a second month to compare. November 2026 is the first.

The questions

All 7 Should I worry?What do I do?Understanding it

Question

The NHS says

AI Overviews

AI Mode

ChatGPT

Is there a blood test for fibromyalgia?

No specific test

Google AI Overviews Matches the NHS

---

The NHS says no specific fibromyalgia test

Google AI Mode Matches the NHS

---

The NHS says no specific fibromyalgia test

ChatGPT (logged out) Matches the NHS

---

The NHS says no specific fibromyalgia test

What is the phone number for the Fibromyalgia Action UK helpline?

0300 999 3333

–

Google AI Mode Yes

---

The NHS says helpline: 0300 999 3333

ChatGPT (logged out) Yes

---

The NHS says helpline: 0300 999 3333

Can antidepressants be prescribed for fibromyalgia pain in a 16 year old?

Aged 18 or over

●Different on AI Overviews Google AI Overviews Contradicts the NHS

---

The NHS says antidepressants for pain only over 18

●Didn’t say on AI Mode Google AI Mode Does not say

---

The NHS says antidepressants for pain only over 18

●Different on ChatGPT ChatGPT (logged out) Contradicts the NHS

---

The NHS says antidepressants for pain only over 18

What causes fibromyalgia?

Cause is unknown

Google AI Overviews Matches the NHS

---

The NHS says cause is unknown

Google AI Mode Matches the NHS

---

The NHS says cause is unknown

ChatGPT (logged out) Matches the NHS

---

The NHS says cause is unknown

Can fibromyalgia be cured?

No cure

Google AI Overviews Matches the NHS

---

The NHS says no cure, symptoms treatable

Google AI Mode Matches the NHS

---

The NHS says no cure, symptoms treatable

ChatGPT (logged out) Matches the NHS

---

The NHS says no cure, symptoms treatable

what is fibromyalgia

No single NHS line

·

·

·

Is exercise good or bad when you have fibromyalgia and tired all the time?

No single NHS line

·

·

·

Matches the NHS Differs from the NHS

Where the answers came from

Answers, of 18 with sources

NHS websiteNHS12

Mayo ClinicUS hospital6 Cleveland ClinicUS hospital5 YouTubeVideo5 Fibromyalgia Action UKUK charity4 Centers for Disease Control and PreventionUS government3

Where the answers came from

Answers, of 6 with sources

NHS websiteNHS4

YouTubeVideo4 Cleveland ClinicUS hospital3 Mayo ClinicUS hospital3 Centers for Disease Control and PreventionUS government2 AAmerican Brain FoundationUS website1

Where the answers came from

Answers, of 7 with sources

NHS websiteNHS5

Cleveland ClinicUS hospital2 Mayo ClinicUS hospital2 MMedical News TodayUS health website2 Fibromyalgia Action UKUK charity2 AAmerican Brain FoundationUS website1

Where the answers came from

Answers, of 5 with sources

NHS websiteNHS3

NHS informNHS2

National Institute for Health and Care Excellence (NICE)UK government2 National Institutes of HealthUS government1 Mayo ClinicUS hospital1 NCBI Bookshelf (US National Library of Medicine)US government1

UK charities for fibromyalgia Fibromyalgia Action UK