The coronavirus disease 2019 (COVID-19) has shown unexpected viral infection traits. Initially thought to affect respiratory health primarily, it also involves the gastrointestinal system. However, many complications during the pandemic were caused by the virus, including neurological, cardiovascular, dermatological, and metabolic issues. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has also been linked to cardiac complications, such as myocardial infarction, in individuals without cardiovascular risk factors. SARS-CoV-2 vaccines exacerbated the situation with possible adverse events (AEs). Vaccine side effects, like thromboembolic events, can be life-threatening or simply bothersome. Postural orthostatic tachycardia syndrome (POTS) is a nonlethal cardiac complication seen with COVID-19 and its vaccines. In this review, we summarized the POTS-COVID-19 relationship comprehensively.