Hypertensive crisis; Numbness to my left ear; progressively it went down to my mandible, my face and my left  shoulder numbness; Radial blood pressure cough; This is a spontaneous report from a contactable nurse reporting for himself. A 48-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number: EH9899), via an unspecified route of administration on 28Dec2020 at single dose for covid-19 immunization. Medical history reported as none. There were no concomitant medications. During the administration the patient did experience some types of reaction where it wanted medical supervision. So, basically when he did got the injection he was waiting for his 15 minute prolapse. But within probably he would say 7 to 8 minutes he started to experiencing some numbness to his left ear and usually he thought it was secondary to the that he had (not clarified) but progressively it went down to his mandible, his face and his left  shoulder numbness and he was experiencing some numbness that radiate towards his fingertips only to the left side. At that time he waived to the Nurse to supervise and at that time he wait again and a Physician came over. He checked his pulse and noted that he had normal rhythm during the pulse check and at that time and he had Emergency medical technician (EMT) come over. The EMT checked his blood pressure he thought multiple times through the left and to the right brachial. He was having what they would consider a hypertensive crisis where systolic were in 170's, 180's, diastolic numbers were between like 120's and 130's and his heart rate was in 70's. So, initially it was not anxiety induced. But he do not have no blood pressure. They wanted he to go to the hospital to treat the hypertensive crisis that was in. The patient opted not to. So he went home in a quieter environment he did have a radial blood pressure cough that he had been checking his blood pressure rigorously, tried different techniques and now he was back to normal state to 120-130 systolic and his diastolic was 70-80. This instance was weird that he did not see as a part of one of the side effects listed with Pfizer BioNTech Vaccine. No treatment received for the events, because he had no history of hypertension it was just more of decreasing the ambient around he. At that time he wanted to go to a quiet environment, took a shower and check his blood pressure. He did orthostatic while laying down sitting up, standing up and he was not hypertensive. For the causality, the nurse stated, "I think it did. This is a fact I mean I was doing fine prior to administration and then this event is slowly subsiding." The outcome of the events was recovering.; Sender's Comments: A possible contributory effect of suspect BNT162B2 on reported hypertensive crisis cannot be excluded.  The impact of this report on the benefit/risk profile of the Pfizer product is evaluated as part of Pfizer procedures for safety evaluation, including the review and analysis of aggregate data for adverse events. Any safety concern identified as part of this review, as well as any appropriate action in response, will be promptly notified to regulatory authorities, Ethics Committees, and Investigators, as appropriate.