diagnosed with Irritable Bowel Syndrome / stomach problems that are more in line with Inflammatory Bowel Disease; shortness of breath / breathing problems; shaking a lot; heart problems; heart pounding; skipping beats; This spontaneous case was reported by a consumer and describes the occurrence of DYSPNOEA (shortness of breath / breathing problems), TREMOR (shaking a lot), CARDIAC DISCOMFORT (heart problems), PALPITATIONS (heart pounding) and EXTRASYSTOLES (skipping beats) in a 20-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included COVID-19 (Date  not known but when symptoms began,  went to get tested because she lost her sense of taste & smell) in January 2021. Previously administered products included for an unreported indication: ZOLOFT (Medical reactions to the drug- heart related: palpitations, shortness of breath,  couldn't breath properly, & throat tightening up.), ZOSYN (Medical reactions to the drug- rashes, face redness, & breathing problems.), PROZAC (Medical reactions to the drug- heart related: palpitations, shortness of breath,  couldn't breath properly and & throat tightening up.). Concurrent medical conditions included Seasonal allergy.    In May 2021, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. In May 2021, the patient experienced DYSPNOEA (shortness of breath / breathing problems), TREMOR (shaking a lot), CARDIAC DISCOMFORT (heart problems), PALPITATIONS (heart pounding) and EXTRASYSTOLES (skipping beats). On 06-Oct-2021, the patient experienced IRRITABLE BOWEL SYNDROME (diagnosed with Irritable Bowel Syndrome / stomach problems that are more in line with Inflammatory Bowel Disease). In May 2021, DYSPNOEA (shortness of breath / breathing problems), TREMOR (shaking a lot), CARDIAC DISCOMFORT (heart problems), PALPITATIONS (heart pounding) and EXTRASYSTOLES (skipping beats) had resolved. At the time of the report, IRRITABLE BOWEL SYNDROME (diagnosed with Irritable Bowel Syndrome / stomach problems that are more in line with Inflammatory Bowel Disease) had not resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In January 2021, SARS-CoV-2 test: positive (Positive) Positive.         No concomitant medications information was reported. No treatment medications were provided. There is no history of Myocarditis/pericarditis it was reported that Second dose administration Date was 15 or 16 May2021 and all of those symptoms settled down after a couple of hours of relaxing in the medical tent.  It was reported that COVID-19 treatment received by the patient included: Cold remedies & eating healthier. This case concerns a 20 year old female  with relevant medical history of Covid 19 , who experienced non-serious , unexpected events of Dyspnea , Tremor , Cardiac Discomfort , Palipitations and extrasystoles which  occurred an unknown period from the 2nd dose of mRNA-1273 (Moderna) . After approximately 4 months and 2 weeks  the patient experienced non-serious, unexpected event of Irritable Bowel Syndrome. The re-challenge for this case is positive for the events Dyspnea , tremor, Cardiac discomfort, palpitations and Extrasystoles because as mentioned in the SD by the patient she experienced the same events from dose 1 and dose 2 and both were relieved by rest, while for the event of Irritable bowel syndrome the re-challenge is not applicable. The benefit-risk relationship of mRNA-1273 (Moderna) is not affected by this report.; Sender's Comments: This case concerns a 20 year old female  with relevant medical history of Covid 19 , who experienced non-serious , unexpected events of Dyspnea , Tremor , Cardiac Discomfort , Palipitations and extrasystoles which  occurred an unknown period from the 2nd dose of mRNA-1273 (Moderna) . After approximately 4 months and 2 weeks  the patient experienced non-serious, unexpected event of Irritable Bowel Syndrome. The re-challenge for this case is positive for the events Dyspnea , tremor, Cardiac discomfort, palpitations and Extrasystoles because as mentioned in the SD by the patient she experienced the same events from dose 1 and dose 2 and both were relieved by rest, while for the event of Irritable bowel syndrome the re-challenge is not applicable. The benefit-risk relationship of mRNA-1273 (Moderna) is not affected by this report.