heart rate went from the 50s to the 120s; Heart racing; His heart rate went from 120 beats to in the 70s and 50s; blood pressure and it was 138/90 which is high for me lately; Dizzy; whole body is weak; my legs were kind of weak; my arm was a little tender, little sore; This is a spontaneous report from a contactable consumer (patient). A 48-year-old male patient received dose 1 of BNT162B2 (Pfizer-BIONTECH COVID-19 Vaccine), via an unspecified route of administration, administered in the left arm on 13Jul2021 at 12:05 PM (Batch/Lot number reported as EW0181 or FW0181) single, for COVID-19 immunization (also reported as to be precautionary and his wife is a teacher). Medical history included blood pressure high from 2018 to an unknown date (the caller has been on the lisinopril since 2018 and started at 40 mg and went down to 5mg), high cholesterol from 2018 to an unknown date, back pain from 03Jul2021 to an unknown date, rib fracture from an unknown date and unknown if ongoing, and fall from 03Jul2021 to an unknown date. Concomitant medications included lisinopril taken for hypertension from 2018 and ongoing; and ibuprofen taken for pain from 03Jul2021 to an unspecified stop date. The patient had no history of all previous immunization with the Pfizer vaccine considered as suspect, did not have additional vaccines administered on the same date of the Pfizer vaccine, and did not have prior vaccinations (within 4 weeks). The patient had whooping cough vaccine 6 years ago and had a sore arm for 3 days. The patient experienced 'muscular weakness' and 'pain in extremity' on 13Jul2021; and 'heart rate increased', 'palpitations', 'heart rate decreased', 'hypertension aggravated', 'dizziness', and 'asthenia' on 14Jul2021. The patient inquired about additional information regarding side effects of the Pfizer COVID-19 vaccine. He received his first dose on 13Jul2021 and reported that this morning, while taking a shower, his heart rate went from the 50's to the 120's. The patient stated that yesterday (13Jul2021) about 12 in the afternoon, he got his first dose of the vaccine. He sat in the place for 30 minutes after the fact, the only thing was his legs were kind of weak but the tech said that was normal so he walked out and continued his day. He drank an electrolyte drink and around about a gallon of water. The patient didn't have a fever, sweats, or chills. He did cardio (stationary bike ride) for about 30 mins, but he'd been taking it easy because on 03Jul2021, he injured his ribs from a fall down a flight of stairs. There were no fractures and he has been taking ibuprofen 600mg twice a day for pain. The pain wasn't bad enough to take that, so he discontinued taking it 5 days ago. He had nothing in his system except for lisinopril that he takes for high blood pressure. The patient further stated that about 8 hours after the vaccine, he had a few glasses of wine last between 6pm-7pm and his arm was a little tender, little sore, but everything else was fine. He was inquiring if there were other reports of this happening. The patient didn't have any rapid pulse when he got the vaccine. His legs feeling weak was improved but after that episode with his heart his whole body was weak, he hasn't felt right since that happened. According to the patient, he did his normal routine this morning. The patient woke up this morning at 7:00am and felt okay. He went to take a shower and his heart rate went from his average of 50-55 beats per minute and started racing. The patient checked his pulse it was about 125 and rapidly getting faster. Also stated that when he was turning the shower on this morning and was washing his hair and face, he could feel his neck pulsating where his pulse was. The caller felt weak and dizzy and then his heart rate went from 120 beats to in the 70s and 50s. Stated that he doesn't drink coffee, but drinks herbal tea. As soon as he got in the shower, he was washing his face and hair and he felt his neck (where you take a pulse), it felt like it was beating fast. He checked it and it was 115, 120. He has a monitor that he wears. It was just out of the blue. He had no stress and no anxiety. It happened all of a sudden, it was strange. The patient didn't know if it was a combination of the few glasses of wine or what. This reaction was so long after the fact and he took his blood pressure medicine at 5:30 last night. Stated that he has been on lisinopril since 2018 and started at 40 mg and went down to 5mg. He tried to calm down, he took the electrolyte drink, a Xanax, and drank water and then in 15-20 minutes, it calmed his heart rate down. The patient's heart rate was back down in the 50s but he didn't feel 100%. The caller's blood pressure was okay. He thought he would go to the ER so he started driving and saw his heart rate going down so he drove home and checked his blood pressure and it was 138/90 which was high for him lately. But his pulse started coming down so he rechecked his blood pressure and it was 130-135/75 with a pulse around 55-65. It's been like that since and stated that he's fine. He was asking why it took almost 24 hours for these to happen. The events did not require a visit to the Emergency Room or Physician's Office. The patient's heart rate and blood pressure had been fine since the episode. The patient underwent laboratory tests and procedures which included blood pressure measurement: 130-135/75 and 138/90 on 14Jul2021, heart rate: 115, 120, 55-65, his heart rate went from the 50s to the 120s on 14Jul2021. The patient stated that he was scheduled for an ECHO and stress test on Friday, but wanted to call Pfizer too. Outcome of the events heart rate increased was recovered on an unspecified date, for hypertension was recovered in Jul2021, for palpitations was not recovered, for muscular weakness was recovering (also reported as ongoing), while for the other events was unknown.  Information regarding the batch/lot number has been requested.