Good Days and Bad Days: How to Describe Disability Limits That Come and Go

Updated November 2026

The short answer: If your health changes from day to day, describe the pattern, not just your best or worst day. Say how often bad days happen, how long they last, what you cannot do on them, and what a good day still costs you. Social Security looks at whether someone can keep up work on a regular and continuing basis, so the pattern over weeks and months matters more than any single day.

General information only, not legal or medical advice.

If you are in your 50s or early 60s and your symptoms come and go, you have probably said, "I have good days and bad days." It is true. The trouble is that it does not tell anyone very much. This article shows how to turn that phrase into clear, honest examples. It builds on our main guide to how to describe work limitations and focuses on one hard part: limits that change.

Why does "I have good days and bad days" fall short?

Almost everyone has better and worse days. On its own, the phrase leaves the most important questions open:

• How many bad days do you have in a typical week or month?
• What can you not do on a bad day?
• What is still hard on a good day?
• Can you tell when a bad day is coming, or does it hit without warning?

Without those answers, a reader may picture your good day as your normal day. That can make your limits look smaller than they are.

What does Social Security look at when symptoms come and go?

Social Security's rules describe work ability as what a person can do on a "regular and continuing basis." The rules define that as 8 hours a day, 5 days a week, or an equivalent schedule. In plain words, the question is not only whether you can do a task once. It is whether you can do it again and again, week after week.

Social Security has also said that for some conditions, symptoms can "wax and wane," and that a person may have "bad days and good days." Its guidance for fibromyalgia, and its rules for mental health conditions, both talk about looking at records over time when possible, because one visit may not show the full picture. And SSDI generally requires that a condition has lasted, or is expected to last, at least 12 months.

None of this means a pattern of bad days will lead to any result. It simply explains why the pattern is worth describing well.

How do you describe a good day honestly?

A good day is often not a normal day. Many people with conditions that come and go still have limits on their better days. Be honest about what you can do, and also about:

• What is still hard. "On a good day I can walk to the mailbox and back, but I still need to sit down after about 15 minutes of standing."
• What doing more costs you. "If I mow the lawn on a good day, I am usually in bed most of the next day."
• How long the good stretch lasts. "Good days usually come one or two at a time."

That last point matters. If pushing yourself on a good day leads to a bad day after, say so. Many people call this "payback." It is a real part of how a condition affects your week.

How do you describe a bad day?

Be specific and plain. Pick a recent bad day and walk through it:

• When did you get up, or could you get up at all?
• What did you need to lie down for, and for how long?
• What tasks did you skip, stop partway, or need help with?
• How was your focus? Could you follow a TV show, a phone call, or a recipe?
• Did medication side effects play a part? Our article on medication side effects covers that.

The four details that make the pattern clear

When symptoms change, these four details often say the most:

1. How often. "About 8 to 10 bad days a month" is clearer than "a lot."
2. How long. Does a bad spell last a few hours, a full day, or several days in a row?
3. Warning. Can you plan around it, or does it come on with no notice?
4. Recovery. How long does it take to get back to your usual level after a bad spell or a busy day?

If you are not sure of a number, give your best honest estimate and say it is an estimate. A symptom journal kept for a few weeks can give you real numbers instead of guesses.

How do bad days affect a work week?

This is where many people stop short. Connect your pattern to what a job would need from you:

• Showing up. How many days a month would you likely miss, come in late, or leave early?
• Breaks. Would you need to lie down or rest at times you could not plan?
• Pace. On bad days, how much slower are you at simple tasks?
• Your past jobs. Think about the work you did in the last several years. If you stood on a line, drove a route, or worked a register, what would a bad day have meant for that shift?

For people 50 and older, Social Security also weighs age, education, and past work. Our article on how age is considered after 50 explains why your past jobs are part of the picture.

A before and after example

Before: "I have fibromyalgia. Some days are good and some are bad."

After: "I have about 10 bad days a month, often two or three in a row. On those days I am in bed or on the couch for most of the day and need help getting dressed. On good days I can do light chores for about 20 minutes before I need to rest. If I do more than that, I usually have a bad day after. Flares come with little warning, so I cancel plans about once a week."

The second version gives numbers, shows the range, and explains why plans fall apart. For more examples across sitting, standing, lifting, and focus, see our post on describing work limitations in a disability application.

What if your doctor visit fell on a good day?

A doctor visit is a snapshot of one day. If you tend to make appointments on days when you can get out of the house, the notes may show you at your better level. That is common.

You can help by telling your doctor about the whole range, not just how you feel that morning. Bring your journal or a short list: how many bad days since your last visit, what they were like, and what you could not do. Our post on why doctor visits matter explains why steady care and honest updates help.

Common mistakes

• Describing only your worst day. It can sound like an exaggeration if your records show better days too.
• Describing only your good day. Many people do this out of pride or habit. It can hide real limits.
• Leaving out payback. What happens the day after you push yourself is part of the pattern.
• Telling different people different things. Keep what you tell your doctor, your family, and anyone helping you consistent and honest.

If you have more than one condition, the good and bad days from each can stack up. See our post on applying with more than one health condition. Our daily limitations checklist can help you cover every area.

Where Disability Prep fits

Disability Prep is an independent preparation service for adults considering SSDI. We are not a law firm and are not affiliated with or endorsed by the Social Security Administration. Only Social Security decides SSDI claims, and Disability Prep does not guarantee any outcome. Our screening can help you see where you stand and, only if you agree, connect you with a participating disability advocate or representative.

See if you may qualify

General information only, not legal or medical advice.

Frequently asked questions

What should I say if I have good days and bad days?
Describe the pattern, not one day. Say about how many bad days you have in a typical week or month, how long they last, what you cannot do on them, and what is still hard on a good day.

Does Social Security consider symptoms that come and go?
Social Security looks at whether a person can keep up work on a regular and continuing basis, which its rules define as 8 hours a day, 5 days a week, or an equivalent schedule. For conditions that wax and wane, its guidance talks about looking at records over time when possible.

Should I describe my best day or my worst day?
Neither one alone. Describe both, plus how often each happens. A good day is often not a normal day, so say what is still limited and what pushing yourself costs you the next day.

What if I cannot remember how many bad days I have?
Give your best honest estimate and say it is an estimate. Keeping a short symptom journal for a few weeks can give you real numbers instead of guesses.

What if my doctor only sees me on good days?
A visit is a snapshot of one day. Tell your doctor about the whole range since your last visit, such as how many bad days you had and what you could not do on them.