One in three people who have Covid-19 have no symptoms.
At the start of the epidemic in the UK in March last year, experts said the virus could have spread across the country as early as January.
This has left many people wondering if they really already had the coronary virus.
The NHS states that the three main symptoms of Covid-19 are new persistent cough, high temperature or loss of taste and smell (anosmia).
Here are some signs that you may have had Corona virus …
1. Abdominal pain
Some Covid-19 patients reported experiencing abdominal pain just before they developed the other known symptoms.
A study, published in the American Journal of Gastroenterology, suggests that people may experience digestive problems, such as diarrhea, when they are infected with the coronary virus.
The U.S. Centers for Disease Control (CDC) already lists diarrhea as a symptom of Cubid-19.
The researchers analyzed data from 204 patients with Covid 19 in Hubei Province in China and they found that 48.5 percent of the patients came to the hospital with indigestion symptoms such as diarrhea, vomiting or abdominal pain.
2. Shortness of breath
Shortness of breath can be a very serious manifestation of Cubid 19, and it can occur on its own, without coughing.
If your chest tightens or you start to feel like you can not breathe deep enough to breathe well, it is a sign to take action, experts say.
Patients who are usually older or suffer from an existing health condition are usually the people who have difficulty breathing – known as shortness of breath.
Signs that a person is experiencing shortness of breath include shortness of breath, a feeling of suffocation or suffocation, chest tightness, rapid and shallow breathing, palpitations and wheezing.
3. Memory loss
Many sufferers have reported that they have difficulty thinking clearly for months after overcoming the first part of the disease.
4. Cube tongue
According to Professor Tim Spector, more and more people are turning to doctors who complain about problems with their tongue.
The epidemiologist at King’s College London, who heads Cubid’s symptom research app, said the disease appears to cause tongue changes that include pain, discoloration, swelling or a strange texture.
“We see a growing number of strange cubes and ulcers in the mouth,” tweeted Professor Spector.
“If you have a strange symptom or even just a headache and fatigue stay home.”
5. Eye infections
Recent reports have suggested that Cubid 19 may cause eye infections such as conjunctivitis.
The College of Optometrists said: “Recognize that any inflammation in the upper respiratory tract can cause viral conjunctivitis as a secondary complication, and this is also the case in Covid-19.
“However, it is unlikely that a person will show up with the viral conjunctivitis secondary to Covid-19 without other symptoms of fever or persistent cough, as conjunctivitis appears to be a late feature in which it has occurred.”
6. Dry cough
A persistent dry cough is a ‘classic’ symptom of coronary heart disease, according to Dr. Sarah Jarvis, a medical doctor and clinical director of Patientaccess.com.
She says a persistent dry cough is usually new to you (or different from your regular cough if, for example, you have a ‘smoking cough’).
It also lasts – not just because you clear your throat or because you have something caught in your throat – and it should last at least half a day.
A dry (rather than “fruity”) cough is more likely to be caused by the corona virus, but you need to isolate yourself regardless of whether your cough is dry or productive.
The NHS describes a “dry cough” as a cough that does not produce phlegm or mucus, which is also irritating and usually associated with a sweet throat.
7. High temperature
Experts say that fever is a major symptom of coronary heart disease.
The NHS says it’s not really heat until your temperature reaches at least 100 degrees Fahrenheit (37.7 degrees Celsius) for children and adults.
They say you can tell if you have a fever when you feel hot touching your chest or back.
Several studies have linked dizziness to COVID-19.
In fact, a review of studies published in the journal Ear, Nose and Throat called dizziness “one of the main clinical manifestations of COVID-19.”
9. Loss of taste and smell
If you have previously lost your sense of taste and smell you may have already had a corona virus.
The British Otolaryngology Association says that patients who do not suffer from fever or cough may experience loss of smell or taste after being infected with the deadly bacterium.
In May, loss of taste and smell was added to the official NHS list of symptoms.
10. Hearing loss
New studies suggest that hearing loss and other hearing problems are closely linked to the coronary virus.
Scientists estimate that 7.6 percent of people infected with COVID-19 experience hearing loss, while 14.8 percent suffer from tinnitus.
They also found that the prevalence of dizziness was 7.2 percent.
How to find out if you have had corona virus
An antibody test can tell you if you have passed Cubid 19 or not.
But the NHS says they do not work for everyone and not everyone who has contracted the virus will have antibodies in their system.
These tests are not yet widely available and are currently only available to certain people working in primary care, social care or education.
The NHS says: “These tests are designed to help the NHS and scientists learn more about who the virus was and how it spread in the UK.”
The test is done by taking blood from a finger prick.
When a person is infected with the virus, the body begins to produce specially designed proteins called antibodies to fight infection.
Users or pharmacists will need to take a finger and place a drop of blood on a stick, which looks like a home pregnancy test.
Some will give an immediate result and others must be returned to the lab. The results will be recorded in the medical records.