Congestive Heart Failure; Blurred vision; The caller was concerned the brother may have had an emboli,; Dizziness; Flu like symptoms; He had difficulty breathing/couldn't breathe; Headache; Cardiac issues; Fatigue; The blood pressure keeps spiking; Unable to stand very well; muscle & joint pain; muscle & joint pain; This is a spontaneous report from a contactable pharmacist.  A 64-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), 1st dose via an unspecified route of administration in deltoid muscle in Jul2021 (Batch/Lot number was not reported, expiration date not provided) at age of 64 years old as a single dose for covid-19 immunisation. The patient's medical history and concomitant medications were not reported. The patient experienced congestive heart failure on 10Jul2021, blurred vision (Life-threatening) on 10Jul2021 19:30, the caller was concerned the brother may have had an emboli, dizziness (Life-threatening), flu like symptoms (medically significant), he had difficulty breathing/couldn't breathe (medically significant), headache, cardiac issues, fatigue, the blood pressure keeps spiking, unable to stand very well, muscle & joint pain, all in Jul2021. The patient was hospitalized for congestive heart failure from 10Jul2021 to an unknown date. The patient underwent lab tests and procedures which included blood pressure: keeps spiking in Jul2021. The outcome of the events was unknown.   Clinical course: The caller was a pharmacist calling in regards to her brother. The caller did not know if this has any correlation. The callers brother received the first dose Pfizer Covid Vaccine, a day later all the typical side effects of flu like symptoms occurred. Had to get up in the middle of the night to raise arms because couldnot breathe:  The caller's brother had to get up in the middle of the night to raise his arms because he couldnot breathe. The caller states this occurred the second night after the caller received the first dose Pfizer Covid Vaccine. The caller did not know specifically what time this occurred. The caller told her brother to go to a hospital. The callers brother had every excuse not to go the hospital. Later that evening, the caller called her brother to check on him. The caller's brother was having more symptoms, the brother had dizziness. This was not just typical Pfizer Covid Vaccine symptoms. Ended up in the hospital with congestive heart failure: The patient ended up in the hospital with congestive heart failure. The hospital is still having trouble, this is the patient's second or third day in the hospital. The hospital is having trouble maintaining the patients blood pressure, the blood pressure keeps spiking. This could be coincidental. The caller is asking if anything different is presenting after receiving the Pfizer Covid Vaccine? The caller would like to present this information to the doctor if so. Is there any correlation at all? The caller states she knows there have been incidents of myocarditis, but the caller's brother is not a youngster, the patient is going to be 65 in less than a month. Received first dose vaccine, a day later all the typical side effects of flu like symptoms occurred: The caller states this occurred after the patient received the first dose Pfizer Covid Vaccine. The symptoms have gone away after the third day. The caller has not asked the specific question if the patient recovered with lasting effects or recovered completely and does not know. Had to get up in the middle of the night to raise arms because couldnot breathe: When asked when this began the caller states her brother must have had the first dose Pfizer Covid Vaccine on Friday, 09Jul2021, or it could have been Thursday, 08Jul2021. The caller called the patient on 10Jul2021. When asked if this was ongoing or went away, the caller replies the patient continued with other symptoms that happened. The caller was concerned the brother may have had an emboli, all sorts of things. The caller advised the brother to go to the hospital. Had dizziness: When asked when the patient's dizziness began, the caller states she can not answer that exactly. The caller clarifies the dizziness occurred after the patient received the first dose Pfizer Covid Vaccine. The patient had only received one dose of the Pfizer Covid Vaccine so far. The caller is not sure if the patient has been advised to receive the second dose Pfizer Covid Vaccine or whether this is something totally different. When the patient was having flu like symptoms he was also having dizziness. The dizziness became different the second day at night time at 1930 pacific time, the patient told the caller he went out to the car and got so dizzy and light headed and couldn't breathe. The patient was bringing groceries inside and got winded. It was not normal. Ended up in hospital with congestive heart failure: The caller states the patient was hospitalized yesterday 12Jul2021, the caller then clarifies, no it was Saturday night, 10Jul2021 the patient was admitted to the hospital. The patient is still hospitalized at this time. The caller states she asked the cardiac nurse at the hospital and the cardiac nurse says she thinks this has nothing to do with the Pfizer Covid Vaccine. The caller is not sure and has heard so many different reports. Causality: When asked causality for each symptom, the caller replies,  she certainly thinks the flu like symptoms are related to the first dose Pfizer Covid Vaccine. The caller does believe something must have happened to cause his condition to spiral down hill. The patient had some symptoms prior to receiving the first dose Pfizer Covid Vaccine but these were all manageable and not a problem. The caller doesn't know if the patient having the flu like symptoms may have put extra stress on the patient's heart. Had to get up in the middle of the night to raise arms because couldn't breathe: The caller considers this life threatening. Had dizziness: The caller states when the patient had dizziness at night, the caller considered it life threatening. The patient had other dizziness and blurred vision and inability to breathe and it was clearly cardiac issues. blurred vision: The caller does not know when this began. The caller states when her brother called at 1930 on 10Jul2021,  that is when he had the blurred vision, the caller does not know if the caller had the blurred vision before and can't answer that question. The caller does not know if the blurred vision is ongoing at the moment. The caller knows the blurred vision had mostly gone away, the caller does not know if any of the blurred vision has come back, she believes it is gone. The caller considers the blurred vision life threatening. Date of first dose: The caller is unable to provide the date the patient received the first dose Pfizer Covid Vaccine. The caller states she would have to be in touch with the patient. It was either 08Jul2021 or 09Jul2021. ~ Information on the lot/batch number has been requested.; Sender's Comments: Based on known drug safety profile, there is reasonable possibility of causal association between the event headache, fatigue, joint pain, muscle pain and the suspect drug BNT162B2. 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.