didn't feel well; Elevated heartrate; Intense fatigue; Muscle ache; Sore arm/pain in her arm; Whole body hurt; This is a spontaneous report from a contactable consumer (patient). An 84-years-old female patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot Number: EN6198; Expiration Date: 30Jun2021), intramuscular, administered in deltoid left (muscle in the left arm) on 04Mar2021 as single dose for COVID-19 immunisation. Medical history included blood pressure high from an unknown date and unknown if ongoing (The blood pressure was now normal), atrial fibrillation (AFIB) from an unknown date and unknown if ongoing. no Investigation assessment done. Concomitant medication(s) included lisinopril taken for blood pressure high from 11Feb2021 to an unspecified stop date; amlodipine taken for blood pressure high, start and stop date were not reported; sotalol taken for AFIB, start and stop date were not reported; apixaban (ELIQUIS) taken for an unspecified indication, start and stop date were not reported. Previously, patient received first dose of PFIZER-BIONTECH COVID-19 VACCINE (Batch/Lot Number: Looked like EN6201; Expiration Date: 30Jun2021), intramuscular, administered in deltoid left (muscle in the left arm) on 11Feb2021 as single dose for COVID-19 immunisation (at the age of 84 years and after 1st shot the patient was not that bad). The patient had elevated heartrate, intense fatigue, and muscle ache after the second shot in Mar2021. Mostly, the muscle ache was there, and the patient had the shot on 04Mar2021 (Thursday), today was 10Mar2021 (Wednesday). So, the muscle ache was better, and the sore arm was better. The fatigue, and the elevated heartrate was definitely there. Elevated heartrate and intense fatigue had not gotten worse, but it was just there. It was pretty much a little bit better, but she had to call in to the cardiologist, but she thought that she would just make sure that Pfizer know about this, just for research purposes, she stated she was 84 years old, and she was in pretty good health. It was just, it had got there so much unknown and there was a lot of research but there should be continuing research and she thought she would do her duty and reported that and see if she was the only and wanted to have a number. The patient had not been to anybody for lab test and hadn't talked to anybody about it (although tried to call, as had two cardiologists, so, she called up yesterday, and said she didn't feel well (start date: unspecified), she had the shot, she needed to come in and see the doctor and nobody called her. She had to call again, but they didn't call back). For the pain in her arm which wasn't too bad and for the muscle aches, the nurse that gave her the shot (unspecified) as corrective treatment for muscle aches and told her to move her arm up and down a lot and if she didn't feel so good, she should take, and she took a couple of TYLENOL. The muscle ache in her arm wasn't that bad, but she could feel it, but it wasn't intense, just the regular body after the second one. It was more than the arm, it was like the whole body hurt (start date: 2021) but that went away, that was pretty much gone. The patient wanted to report a suspected reaction to the second COVID-19 vaccine shot and wondered whether he was the only one that got the reaction, whether it was his general state of health or whatever, as this might help the doctor. The patient wanted to report it and see if there was any information. The outcome for elevated heartrate, whole body hurt, and intense fatigue was recovering and for rest all events was not recovered.  No follow-up attempts are needed. No further information is expected.