Weakness and tingling down left arm; Weakness and tingling down left arm; Lightheaded; PVC's every 3 beats; emotional too and just very tired; Can not read the vaccination card as she does not have her glasses; Palpitations; Fatigue; Slept a lot; Thready pulse and vertigo; Thready pulse and vertigo; Soreness in left arm at the injection site and down the left arm; Soreness in left arm at the injection site and down the left arm; This is a spontaneous report from a contactable nurse (patient). A 54-year-old female patient received first dose bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, reason for no lot number of COVID Vaccine: Can not read the vaccination card as she does not have her glasses, Expiry Date unknown), via an unspecified route of administration in the left arm on 18Dec2020 at single dose for 'Work with COVID patients'. Medical history included none. There were no concomitant medications. The patient experienced weakness and tingling down left arm (hospitalization) on 22Dec2020, lightheaded (hospitalization) on 22Dec2020, PVC's every 3 beats (hospitalization) on 22Dec2020, soreness in left arm at the injection site and down the left arm on 18Dec2020, thready pulse and vertigo on 19Dec2020, fatigue on 20Dec2020, slept a lot on 19Dec2020, palpitations on 21Dec2020.  Details as follows: Caller says she received the vaccine, she is a nurse. She got the vaccine on Friday, 18Dec2020. She had soreness in her arm and at the injection site on Friday but that was it. On Saturday (19Dec2020) she noticed a thready pulse, but went on with her day with only a little arm pain. Sunday (20Dec2020) she was fatigued and the thready pulse continued. She slept a lot on Saturday (19Dec2020) and Sunday (20Dec2020). Yesterday (21Dec2020) she felt a little better, but had palpitations here and there. This morning (22Dec2020) she went into work, was very lightheaded, had tingling down her left arm, and had palpitations. So she hooked herself up to a monitor. Her pulse ox was between 97-99%. Her heart rate would be in the 90s and then drop to 48, so she went down to the ED. She has had a CT, and she is throwing PVC's every 3 beets. She has not been admitted as they are still waiting for results. She is still in the ED. They did a CT to see if there was a possible clot. On 18Dec2020 she received the vaccine around 2 PM. She had soreness at the injections site and down the left arm, which went away by Sunday (20Dec2020). She now (22Dec2020) has weakness and tingling down the left arm. It was never red or anything at the injection site. Saturday, 19Dec2020, she had thready pulse and Vertigo which lasted until Sunday 20Dec2020. She would be laying in bed and try to flip to the other side and having vertigo.  When the fatigue started on Sunday (20Dec2020) she did not feel like herself. She was very emotional too and just very tired. Since she went to the ED she has had a CT scan, one with contrast and one without. She had a chest X-ray, and she is on a cardiac monitor. Results are pending. She has Trigeminy PVCs. She says she never goes to the hospital. But she is not admitted yet (pending clarification). Can not read the vaccination card as she does not have her glasses. Unable to read off the NDC, lot, and expiration date. History: Has been on the same vitamins for two years with nothing new. Blood pressure: Normal base line is 130s/80s maybe lower. Heart rate: Currently within her normal limits of 80s-90s. Depending on what happens, it was asked if she should get the second dose. The patient underwent other lab tests and procedures which included blood pressure measurement: 163/76  on 22Dec2020, chest x-ray: unknown result on 22Dec2020 (Result: Pending), computerised tomogram (CT scan): unknown result  on 22Dec2020 (Result: Pending), heart rate: 80s-90s on 22Dec2020, Pulse oximetry: 97-99 % on 22Dec2020, cardiac monitor: results are pending on 22Dec2020. The outcome of events weakness and tingling down left arm, pvc's every 3 beats, lightheaded, palpitations and fatigue was not recovered. The outcome of the event soreness in left arm at the injection site and down the left arm was recovered on 20Dec2020. The outcome of the events thready pulse and vertigo was recovered on 20Dec2020. The outcome of the event slept a lot was recovered on 20Dec2020. The outcome of other events was unknown.  Information on the lot/Batch number has been requested.; Sender's Comments: Based on available information, a possible contributory role of the subject vaccine cannot be excluded for the reported events due to temporal relationship. There is limited information provided in this report.  Additional information is needed to better assess the case, including complete medical history, diagnostics, counteractive treatment measures and concomitant medications.   This case will be reassessed once additional information is available.  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.