As the NHS points out, if you have a high temperature that lasts longer than two days, a new, continuous cough or a loss or change to your sense of smell or taste, you may have COVID-19.
“Stay at home and get a test,” advises the health body.
It is important to note that you cannot catch COVID-19 from the vaccine, but you may have caught it just before or after your vaccination.
According to the NHS, serious allergic reactions to the COVID-19 vaccines are very rare.