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At a glance
Record in brite how you are doing day by day, learn your limit of exertion and arrive at your appointment with a clear overview. Free of charge.
With Long Covid the rule is: do not "push through" and go beyond your limit of exertion. Anyone who keeps forcing themselves despite exhaustion risks a lasting deterioration (post-exertional malaise). New chest pain or severe shortness of breath should be assessed by a doctor.
We speak of Long Covid when, after an infection with the coronavirus SARS-CoV-2, symptoms appear or persist that cannot be explained by another illness. Most people recover fully within a few weeks after a coronavirus infection. In a proportion of people, however, symptoms remain or appear anew — sometimes after an apparent recovery. These symptoms can significantly restrict performance, everyday life and the ability to work for months.
The temporal distinction is important, because the terms often get mixed up. It depends on how long the symptoms have already persisted after the infection:
| Term | Time window after infection | What is meant |
|---|---|---|
| Acute COVID-19 | up to 4 weeks | The actual acute infection |
| Long Covid | from 4 weeks | Umbrella term for symptoms that persist or appear anew beyond the acute phase |
| Post-COVID syndrome | from 12 weeks | Symptoms that last at least three months and persist for at least two months, without another explanation |
In short: Long Covid is the broader umbrella term for everything that is still present from the fourth week after the infection onwards. Post-COVID syndrome is the longer form, defined from around the twelfth week. In practice the two terms are often used synonymously — in the ICD-10, the code U09.9 covers the post-COVID state. For you as an affected person, the more important point is not the label but that persistent symptoms are taken seriously and accompanied by medical care.
Long Covid is not a single illness with one single symptom picture, but a collective term for very different courses. Some people mainly have a persistent exhaustion, others struggle with concentration and memory, still others with shortness of breath, palpitations or a disturbed circulatory regulation. Often several of these symptoms occur together. That is precisely why it helps to organise the symptoms into clusters, rather than viewing them as a long, confusing list.
More than 200 different symptoms have been described with Long Covid — which sounds overwhelming at first. It makes more sense to group the most common symptoms into clusters. A cluster is a group of symptoms that often occur together and have a similar origin. The three most important are the fatigue cluster, the cognitive "brain fog" cluster and the respiratory and cardiac cluster.
Alongside these three main clusters, there are further common symptoms, such as smell and taste disorders, which are summarised in the next section. Which clusters predominate in your case is individual — and also determines which treatment and which specialty are most likely to help.
Long Covid can affect almost every organ system. Beyond the three main clusters, affected people frequently report:
The course is typically variable: better days are followed by worse ones, often in waves. Many affected people experience the symptoms improving slowly over weeks and months. In a proportion they persist for longer. A sudden "crash" after overexertion can temporarily set back progress — that is frustrating, but it does not mean that recovery is impossible. Precisely because the course fluctuates so much, it helps to document your own symptoms over time: this way patterns and triggers become visible.
Why some people develop Long Covid and others do not is not yet conclusively clarified. Research assumes that several mechanisms work together — and that they can differ from person to person. The main ones under discussion are:
It is important to be honest: none of these mechanisms has so far been proven for all affected people, and there is no single test that captures the cause. But this does not mean the symptoms are "imagined" — Long Covid is a real, physically based illness whose mechanisms are still being researched.
Among the risk factors are a more severe acute course, female sex, older age, pre-existing conditions and a high number of symptoms in the acute phase. According to current data, a vaccination against COVID-19 lowers the risk of developing Long Covid after an infection — even though it does not entirely rule it out. Conversely, Long Covid can also occur after a mild course, even in previously healthy, young people.
The diagnosis of Long Covid is made clinically — that is, from the temporal connection to a coronavirus infection, the typical symptom picture and the course. There is currently no single laboratory test that proves Long Covid. This makes a careful work-up all the more important, one that above all rules out other, treatable causes.
This ruling-out is not a distrust of your symptoms, but good medicine: some symptoms that look like Long Covid have another, readily treatable cause. If nothing else is found and the picture fits, the diagnosis is Long Covid or post-COVID syndrome. Depending on severity, the points of contact are the GP practice, specialised post-COVID clinics and, depending on the cluster, specialists in lung, heart, neurology or rehabilitation.
Because there is so far no standard causal therapy, energy management (pacing) is the most important building block — especially with pronounced fatigue and post-exertional malaise (PEM). The basic idea: you portion out your limited energy so that you stay within your limit of exertion and do not trigger a "crash" in the first place. This sounds simple, but it is a real change of perspective — away from the principle of "grit your teeth and push through", towards planning ahead and managing your strength.
Important to understand: with PEM, the classic "building up fitness" with steadily increasing exertion is not the treatment of choice and can even do harm. Unlike with pure deconditioning, overdoing it here leads to a delayed worsening. That is why pacing comes first, before any thought is even given to cautious activation.
A tried-and-tested image is the "spoon theory": imagine you have only a certain number of spoons of energy per day. Every activity — showering, shopping, a phone call — costs spoons. Once they are used up, that is it, no matter what the calendar says. Anyone who "borrows" beyond their own spoons pays it back the next day with a crash. Pacing means deliberately budgeting with the spoons you have.
brite helps you find your limit of exertion and recognise triggers for a crash — with a record you can bring to your appointment.
Since a causal treatment is lacking, therapy is guided by the predominant symptoms and clusters. The aim is to improve quality of life and to give you tools to work with. Much of this runs across several specialties and through rehabilitation services — not through a single tablet.
When medications are used, then mostly against individual symptoms — such as painkillers or sleep aids, remedies for circulatory symptoms or for depressive moods. Because several preparations quickly accumulate in the process, it is worth looking at possible interactions. More on this in the guide Drug interactions. Always discuss changes to your medication with your practice.
There are many offers and promises around Long Covid — and unfortunately dubious ones too. It is worth honestly distinguishing between what is well substantiated and where the evidence is still lacking.
Record in brite how your symptoms develop and what triggers a crash — this way you see what really helps you, and have it ready for the doctor's appointment.
A large part of coping with Long Covid takes place in everyday life. A few principles help you get through the time more steadily:
Long Covid runs in waves and over months — with many symptoms and often several medications. Anyone who keeps an overview and knows their limit of exertion gets through it better. That is exactly what brite supports.
