PIP for Chronic Fatigue - ME/CFS, Fibromyalgia and Fatigue Conditions

Chronic fatigue - whether from ME/CFS, fibromyalgia, long COVID, lupus, MS, or any other condition - is one of the hardest things to describe on a PIP form. "I'm tired" doesn't convey the reality of being unable to lift your arms, think clearly, or stay upright. This guide explains how to translate crushing fatigue into PIP language that scores points.

The Problem with Fatigue and PIP

Fatigue is invisible. You can't see it on an X-ray, measure it with a blood test, or demonstrate it in a 45-minute assessment. Assessors often note "appeared well" or "was alert during the assessment" and dismiss fatigue claims. The key to scoring is using the reliability criteria and the concept of post-exertional malaise.

The Reliability Criteria Are Your Best Friend

PIP asks whether you can do each activity reliably - meaning safely, to an acceptable standard, repeatedly, and in a reasonable time. Fatigue destroys repeatability. You might be able to cook one meal, but you cannot do it again for the rest of the day. You might shower in the morning, but that uses all your energy for hours.

For every activity, write: "Even if I can manage this activity on one occasion, I cannot do it repeatedly throughout the day because the fatigue from doing it once leaves me unable to function for several hours. I therefore cannot complete this activity reliably."

Post-Exertional Malaise (PEM)

If you have ME/CFS, PEM is your strongest argument. Any exertion - physical or cognitive - causes a crash lasting hours, days, or weeks. This means you fail the "repeatedly" criterion for virtually every activity.

Describe it specifically: "Showering causes a post-exertional crash lasting 2-3 hours where I must lie down. Cooking a simple meal causes a crash lasting the rest of the day. Walking to the car causes a crash that may last 24-48 hours. This means I cannot perform any daily activity repeatedly or in a reasonable time period."

Which Activities Does Fatigue Affect?

Every single one. That's what makes fatigue so devastating - and potentially so high-scoring on PIP. The key activities:

Preparing Food (Activity 1) - Cannot stand long enough. Cannot concentrate on multiple steps. One meal attempt exhausts you for the day.

Washing and Bathing (Activity 4) - Showers are extremely energy-intensive. Many people with severe fatigue wash in stages over the day, use a shower chair, or go days without washing.

Dressing (Activity 6) - The physical effort of dressing exhausts you. Many people rest in bed clothes for hours before managing to dress.

Moving Around (Activity 12) - Fatigue limits walking distance as severely as pain does. If you can walk 20 metres but then need to sit for 30 minutes to recover, you cannot walk 20 metres reliably.

How to Describe Fatigue to an Assessor

Don't say: "I get really tired."

Say: "My fatigue is not ordinary tiredness. It's a complete physical and cognitive collapse where I cannot lift my arms, cannot process thoughts, cannot stand, and must lie completely still in a dark room. This happens after any physical or mental exertion. Yesterday I walked to the kitchen and had to lie on the floor for 20 minutes before I could get back to bed."

What Evidence Helps?

• Specialist letters (ME/CFS clinic, rheumatologist, neurologist)
• Activity tracker data (step counts, heart rate)
• Fatigue diary showing daily energy levels and crashes
• Occupational therapist reports
• Partner or carer statement
• Sick note history from GP