Whether you had a “bad cold” this winter or recently endured a cough that would not quit, it’s only natural to wonder if you might have had COVID-19 without realizing it.
That’s especially true now that infectious disease experts say the virus was likely already spreading before cities started to lock down and put social distancing orders in place.
As the weeks progress, it’s become evident that this is a virus that was widespread throughout our country, particularly in more populated areas, sooner than we thought.
So, could you have had COVID-19 without realizing it? It’s possible.
Most people who have coronavirus have an uncomplicated case of infection, and it could be indistinguishable from the cold or influenza.
Plus, some people have no symptoms at all—up to 40% of infections, according to estimates from the Centers for Disease Control and Prevention (CDC).
Unfortunately, there’s no way to know with 100% certainty if that illness you dealt with last winter was COVID-19 or if you happened to pick up an asymptomatic case at some time. But experts say some signs can be tip-offs that you might have had COVID-19 already. Here are the top ones to know, plus what it means for immunity.
- You had a “bad cold.”
It can be tough to distinguish a cold from a mild form of COVID-19 without a test, depending on which symptoms you experience, but colds don’t typically cause shortness of breath, severe headaches, or gastrointestinal symptoms like COVID-19 can. Here’s the full list of the CDC’s official symptoms:
- Fever or chills
- Shortness of breath or difficulty breathing
- Muscle or body aches
- New loss of taste or smell
- Sore throat
- Congestion or runny nose
- Nausea or vomiting
- You’ve been dealing with unexplained hair loss.
This hasn’t been widely studied in the context of COVID-19, but many people who have recovered from the virus are reporting issues with hair loss.
Actress Alyssa Milano, who has been suffering from COVID-19 symptoms for months, shared a video of herself on Instagram in early August repeatedly brushing out large clumps of hair after she showered.
Members of Survivor Corps, the Facebook support group for people who have had COVID-19, have also talked about experiencing hair loss months after recovering from the virus. It’s due to a condition known as telogen effluvium, and it can be caused by a slew of factors, including pregnancy, extreme stress, weight loss, and illnesses other than COVID-19.
It’s unlikely that you would just lose more hair than usual without having other COVID-19 symptoms, like a cough or fever. It’s also important to note that hair loss can happen from stress in general, he says—and there’s been a lot of stress due to the pandemic. If you’re experiencing hair loss, it’s possible it’s due to an unknown COVID infection, a build-up of stress during uncertain times, or another underlying issue.
- You lost your sense of smell or taste at one point.
Loss of smell and taste has been a big hallmark of COVID-19. While this symptom doesn’t occur for everyone, doctors points out that it’s now strongly linked with the novel coronavirus.
Preliminary data found that, in COVID-19 patients who lost their sense of smell, 27% had “some improvement” within about seven days, while most were better within 10 days.
Worth noting: It’s also possible to temporarily lose these senses with other respiratory conditions, like a cold, the flu, a sinus infection, or even with seasonal allergies. But experts say that the symptom can linger in some people and last for months after recovering from COVID-19.
- You’re really, really tired.
This is one of the biggest lingering effects after a person has COVID-19, according to the JAMA study. That study found that 53% of patients said they were struggling with fatigue around 60 days after they first showed signs of the virus.
We’re seeing some people who had mild illness who have fatigue for some period of time. But, he says, it’s not entirely clear right now why this happens. It could be the way a person’s immune system reacts to the virus, or it could simply be the way the virus works in the body.
Keep in mind that fatigue is a really common issue and can be a sign of many different health issues (including, of course, not getting enough sleep). Like hair loss, people who experience fatigue due to COVID-19 would have also had other symptoms of the virus in the past.
- You feel breathless sometimes.
Research published in the journal JAMA has found that people with COVID-19 can have after-effects of the virus, including shortness of breath. It’s not entirely clear why at this point or how long this can last, but it’s likely due to lasting inflammation in the lungs.
This is one of the well-known lingering effects in people who were diagnosed with COVID-19. If you have this, well, perhaps that illness you experienced before was actually COVID.
If you’re experiencing shortness of breath, call your primary care physician for guidance or ask for a referral to a pulmonologist. They can often prescribe medications and treatments, like an inhaler, that can help.
- You have a cough that will not go away.
A lingering cough is another symptom that people who participated in the JAMA study reported. The cough is often dry, meaning that nothing comes up, like phlegm or mucus. This is fairly common: Data from the CDC found that 43% of people who had COVID-19 still had a cough 14 to 21 days after getting a positive test for the virus.
for more info about COVID-19 check: https://sacoronavirus.co.za