Tag: Chest Pain GLP1

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Chest Pain on Mounjaro? Right Side or Back Pain Explained (UK)

Right Side Chest or Back Pain on GLP-1: When to Worry (UK Guide)

Author context: After losing 6 stone on Mounjaro (GLP-1), I experienced right-side abdominal and back pain that escalated into emergency NHS gallbladder surgery. This guide explains what right-side pain can mean — and when to seek urgent care.

Short answer: Mild right-side chest or back discomfort on GLP-1 can sometimes be digestive. However, persistent upper right pain lasting more than 1–2 hours — especially with nausea, fever, or jaundice — may indicate gallbladder issues and requires urgent assessment.

If you’re Googling this in discomfort, read calmly and check your symptoms against the guide below.

Read my full emergency surgery story here →

Where is gallbladder pain usually felt?

Gallbladder pain is typically felt in the upper right abdomen under the ribs. It may radiate to the back or right shoulder blade and can sometimes feel like chest discomfort.

  • Upper right abdominal pain
  • Right shoulder blade pain
  • Mid-back pain
  • Occasionally chest tightness

Chest pain vs digestive pain on GLP-1

GLP-1 medications slow gastric emptying. This can sometimes cause bloating or discomfort.

However, gallbladder pain behaves differently.

Feature Digestive Discomfort Gallbladder Pain
Pain type Bloating, pressure Steady, intense
Duration Fluctuates 1–6 hours
Radiation Rare Back / shoulder blade
Improves with movement Often Usually no

When to worry

  • Pain lasting more than 1–2 hours
  • Fever or chills
  • Yellowing of eyes
  • Persistent vomiting
  • Worsening right-side pain

If these apply, seek urgent medical care.

Why GLP-1 users should be aware

Rapid weight loss can increase gallstone risk. If right-side pain develops during GLP-1 treatment, it should not automatically be dismissed as “just wind.”

Read the science behind GLP-1 and gallstones →

My experience

I initially thought the pain was trapped wind. It wasn’t. It persisted, radiated to my back, and did not improve with movement.

FAQs

Can GLP-1 cause chest pain?

GLP-1 may cause digestive discomfort, but persistent right-side pain should be assessed medically.

Is shoulder blade pain linked to gallstones?

Yes, referred pain to the right shoulder blade is common in gallbladder attacks.

Should I go to A&E for right-side chest pain?

If severe, persistent, or accompanied by fever or jaundice, seek urgent care.

How long does gallbladder pain last?

Typically 1–6 hours and does not improve with position changes.

Can rapid weight loss trigger pain?

Rapid weight loss can increase gallstone risk, which may lead to pain episodes.

Disclaimer: This article shares lived experience and educational context. It does not replace professional medical advice.

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GLP-1 and Gallstones: Was It Mounjaro or the Weight Loss? (UK)

Did Mounjaro Cause My Gallstones? The Science Explained (UK)

Short answer: Mounjaro (a GLP-1 medication) does not directly “create” gallstones — but the rapid weight loss that can happen on GLP-1 treatment can increase gallstone risk in some people.

If you’ve developed gallstones while losing weight on Mounjaro, you’re not alone. I ended up needing emergency NHS gallbladder surgery after losing 6 stone on GLP-1 — and this post explains what the evidence and physiology suggest, without panic or overclaiming.

Read my full emergency surgery story here →

Does Mounjaro cause gallstones?

Mounjaro does not directly form gallstones. However, significant and rapid weight loss — which often occurs with GLP-1 medications — is a recognised risk factor for gallstone formation.

Gallstones commonly form when:

  • The liver releases more cholesterol into bile during fat loss
  • The gallbladder empties less often or less completely
  • Cholesterol crystals build up and solidify into stones

This is why gallstones also occur with:

  • Very low calorie diets
  • Bariatric surgery
  • Rapid fat loss programmes
  • GLP-1 assisted weight loss

Why rapid weight loss increases gallstone risk

When body fat breaks down quickly, bile composition can change.

  • Cholesterol concentration in bile can increase
  • Gallbladder motility can reduce (it may “sit” fuller for longer)
  • Bile can crystallise more easily, forming stones over time

In plain English: the faster the weight comes off, the more your bile environment can shift toward stone formation in susceptible people.

Are gallstones listed as a GLP-1 side effect?

Gallbladder-related events are listed as a possible adverse event in GLP-1 medication documentation, which makes sense because GLP-1 treatment can lead to substantial weight loss.

But important nuance:

  • Risk is not the same as certainty
  • Most people on GLP-1 do not develop gallstones
  • Speed of weight loss and personal risk factors matter

This is the difference between “associated with” and “directly caused by.”

What happened to me (quick version)

I lost 6 stone over 12 months on Mounjaro.

Then I developed symptoms I nearly dismissed:

  • Upper right abdominal pain
  • Back / shoulder blade pain
  • Episodes that didn’t behave like normal indigestion

Blood tests showed inflammation. Imaging confirmed obstruction. Emergency surgery followed.

Full timeline and symptoms here →

Who is most at risk of gallstones during GLP-1 weight loss?

  • People losing weight very rapidly
  • Anyone with previous gallstones or gallbladder “sludge” history
  • People with strong metabolic changes from obesity
  • Those on extreme calorie restriction alongside medication

In real life, it’s rarely “one thing.” It’s usually a combination.

Should you stop Mounjaro if you develop gallstones?

Do not stop prescribed medication without medical advice.

What happens next depends on:

  • How severe your symptoms are
  • Whether there’s infection or obstruction
  • Whether surgery is required
  • Your prescriber’s plan for risk vs benefit

Many people continue GLP-1 treatment after gallbladder removal under supervision.

Can you prevent gallstones during rapid weight loss?

There’s no guaranteed prevention method, but clinicians commonly discuss:

  • Avoiding crash dieting alongside GLP-1
  • Aim for steady loss when possible
  • Keeping diet consistent and not “yo-yoing” intake
  • Acting early if symptoms appear

If pain matches gallbladder patterns, getting assessed early is the safest move.

When to seek urgent medical help

  • Severe pain lasting more than 1–2 hours
  • Fever, chills, shaking
  • Yellowing of eyes/skin (jaundice)
  • Persistent vomiting
  • Worsening pain you can’t “ride out”

Optional digestion support (educational only)

During recovery and dietary changes, some people explore gentle digestion support — not as a treatment, but to support normal digestion while they work out what foods feel okay again.

Browse digestive support options at Lily & Loaf

Important: Supplements do not prevent gallstones and do not replace medical care. If you’re in severe pain or worried, seek urgent assessment.

FAQs

Can GLP-1 medications increase gallstone risk?

Rapid weight loss is a recognised risk factor. GLP-1 medications may increase risk indirectly in some people because they can lead to substantial weight loss.

Are gallstones common on Mounjaro?

They’re not common for most users, but gallbladder events are a recognised potential risk, especially during faster weight loss.

Is it the drug or the weight loss?

For many people the biggest driver is the speed of weight loss. Medication can contribute indirectly by accelerating fat loss.

Can you take Mounjaro after gallbladder removal?

Many people do, under medical supervision. Your clinician should guide timing and dosing after surgery.

What should I do if I have right-side pain on GLP-1?

If pain is severe, persistent, or comes with fever, vomiting or jaundice, seek urgent medical care.

Disclaimer: This article shares personal experience and educational context. It does not replace professional medical advice. If you have severe symptoms, fever, jaundice, persistent vomiting, or escalating pain, seek urgent medical care.