Shortness of breath; pericardial effusion requiring drainage/fluid around the heart that made the heart beat super fast to pump up blood; inflammation of the heart sac; fluid overload on the lung; fluid around the heart that made the heart beat super fast to pump up blood; This is spontaneous report from a contactable consumer (patient) reported for himself. A 53-year-old male patient received bnt162b2 (Pfizer-BioNTech Covid-19 Vaccine), dose 1 via an unspecified route of administration, administered in left upper arm at 53 years old on 20Mar2021 08:00 (Lot Number: EP7534) as single dose for covid-19 immunisation. Medical history included ongoing high blood pressure from 2018, he says he has had this for roughly 3 years. Concomitant medication included amlodipine at 5mg once a day for high blood pressure from an unspecified start date in 2018 and ongoing, he says he has been taking this for a few years, maybe 3 years. No additional vaccines were administered on Same Date of the Pfizer Suspect or within 4 weeks. He was not sick at the time of vaccination previously. The patient was calling about the Pfizer COVID vaccine. He says he is just trying to get answers because what he experienced was very alarming to him. He got the vaccine at 8:00 in the morning. He says a student did it, she took a long time, she was very timid. He says she was being supervised by an RN. He experienced shortness of breath on 07Apr2021, he says it was in the morning that the shortness of breath started, because he did make an appointment to go the the COVID test, he got the COVID test around noon that same day. He says he was diagnosed with pericardial effusion requiring drainage and inflammation of the heart sac. He says he had fluid overload on the lungs that required IV diuretics. He says the symptoms started after the vaccine, and these symptoms were what was causing the shortness of breath. He says the fluid around the heart made the heart beat super fast to pump up blood. He says the fluid triggered the shortness of breath. He says when they removed fluid the breathing got easier but then it settled into the lungs. He says Tuesday he dropped off the cliff, Tuesday or Wednesday night, one of them, for two nights he was on oxygen, they gave him a diuretic for the lungs, after 12 hours he started feeling better, continued to get better and better after they moved the fluid from the lungs with Lasix through the IV. He says he doesn't fit the profile of someone who would develop these issues, he has no history, no cancer, no autoimmune disorders. He says they say well maybe it is the virus but the doctors currently have no specific answers for the caller. He says they told him that someone having this would be the profile of an IV drug user. He says he never uses drugs, he does not fit a profile like this. He says he wants to be fully vaccinated. He says the timing is suspicious with the vaccine shot. He says it is 50/50 on the doctor's opinions, half say to get the shot, the other half say don't do it. He says they say the second shot is worse. He says he is confused as to what to do, that he understands this is a big experiment, he wants the vaccine but not at the cost of another visit to the hospital. He says he was at the hospital on oxygen, he couldn't get out of bed for a day. He says the doctor said there was a study in (Withheld), the caller says he did a lot of research in the hospital for 6 days, that says the demographic is younger but it is heart issues with men for the heart with the Pfizer vaccine. He says they are studying it. He says a couple of doctors referred to that, the ones that say don't get the shot, not yet. He says he can't pinpoint it exactly. He says it could have been a fluke but the timing is very suspicious. He says that because of some of the side effects, his week in hospital, he was concerned for his life, he wants to be fully vaccinated but not at the cost of going though this or cost of killing him. He says he does not want to go through this again, he will not get vaccinated unless he is comfortable. He asks should he switch to (Withheld), is that a safer bet, (Withheld), should he just skip it all together or not. He says he knows they are a different type of vaccine. He says they had to remove fluid form his pericardial sac, he had 2 days of draining, they drained a liter from around the heart so it could beat normal again. He says apparently some of the fluid went to the lungs so he needed oxygen. He says this all happened Tuesday morning, he came back home yesterday, he looks pretty good. He says he just wants to do the vaccine and asks should he take the second one or not. He would like to get any information. He says the fluid in his heart was starting to build up on 05Apr2021 or 06Apr2021, he started getting symptoms that come and go. He says he was admitted to the hospital on 19Apr2021 and his procedure was on 20Apr2021 so his shortness of breath resolved the day after the procedure. He says he was hospitalized from 19Apr2021 to 25Apr2021. After reporting shortness of breath he says that was it, basically. He says he went to the nurse treatment center on 19Apr2021 because he thought it might be COVID but this event landed him in the hospital. The events required a visit to emergency room, he said he went to the emergency room on 19Apr2021 and a doctor told him he might not make it. The patient said he was scared and he didn't know why the doctor would have said that to him. He said he did not have an appointment date to physician office yet, he was waiting to get a call back. Relevant Tests included: Rapid COVID test, Date 07Apr2021 Result negative, Date 15Apr2021 Result negative, Date 19Apr2021 at Patient First Result negative, Date 19Apr2021 at the hospital on admittance, Result negative. Standard COVID test, Date 19Apr2021 Result negative, Date 15Apr2021 Result negative. He says at the hospital there was a lot of tests done on his heart and lungs, nothing was coming back scary, they were coming back as perhaps viral markers. The outcome of shortness of breath was recovered on 21Apr2021, of other events was unknown.