Her blood pressure spiked, and was very high the night of the day she got her first COVID-19 Vaccine; she had a high heart rate of 148; This is a spontaneous report from a contactable consumer (patient). A 40-year-old female patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE; Lot Number: EW0167) via an unspecified route of administration on 24Apr2021 at 15:10 (at the age of 40-years-old) as a single dose in the left arm for COVID-19 immunisation. Medical history included pre-eclampsia on 13May2010 (first diagnosed with pre-eclampsia while in labor with her son on 13May2010), blood pressure high from 13May2010 and ongoing, irregular heartbeat from an unspecified date and unspecified if ongoing (she had an irregular heart beat all her life, for at least 20 years. She said her heart skips a beat), leaky heart valve from an unspecified date and unspecified if ongoing (diagnosed approximately 7 years ago) and heart rate high (her heart rate was typically higher than most peoples). The patient had no history of previous immunizations with the COVID-19 vaccine. Concomitant medications included atenolol (TENORMIN; tablet; strength: 25mg) taken for blood pressure from an unspecified date and ongoing at 25mg, unspecified frequency. Other products were also reported as "no". The patient did not receive additional vaccines on the same date or within 4 weeks of the COVID-19 vaccine. On 24Apr2021 at 18:30 the patient experienced her blood pressure spiked and was very high the night of the day she got her first COVID-19 vaccine and she had a high heart rate of 148. The patient called to inquire whether an increased blood pressure was a side effect of the first COVID-19 vaccine dose. She reported that her blood pressure spiked and was very high the night of the day she got her first COVID-19 vaccine (on Saturday, 24Apr2021). She said her (highest) blood pressure readings were 184/170 and 218/130. She said she had a high heart rate of 148, as well. On Saturday, 24Apr2021, between 6:30PM-7:00PM, her smart watch alerted her that her heart rate had increased to 114, so she decided to check her blood pressure. She said she checked her blood pressure at home first with a blood pressure machine that she already had. She said when she saw her high blood pressure readings, she was hopeful that the blood pressure machine was wrong. She said she went out and spent $80 on a brand-new blood pressure machine to recheck her blood pressure, and her blood pressure readings were still high. Her husband and daughter got their COVID-19 vaccines at the same time she did. She said her husband and daughter's blood pressure readings were fine with both blood pressure machines she had used. She had already taken a blood pressure pill that morning (clarified as Atenolol 25mg), so she drank a bunch of water, and hoped for the best. The urgent care was already closed, and she did not want to go to the hospital because of the COVID-19 virus. She said she took 1 Atenolol 25mg tablet in the morning (on 24Apr2021). Her blood pressure was still higher than normal, providing 134/86 as her latest blood pressure reading this morning (27Apr2021). She said her heart rate was 75 this morning. She said her heart rate was typically higher than most peoples. She also reported that she was first diagnosed with pre-eclampsia while in labor with her son on 13May2010. She said from that point on she was told she would have high blood pressure. She stated her high blood pressure was treated. She said her blood pressure normally ran within a few numbers above or below 120/80. The adverse events did not require a visit to the emergency room or to the physician office. The clinical outcomes of the events her blood pressure spiked and was very high the night of the day she got her first COVID-19 vaccine and she had a high heart rate of 148 were both recovering/resolving.   No Follow-up attempts are needed. No further information is expected.