chest tightness; his chest hurt; positive for Covid-19 Infection; positive for Covid-19 Infection; feeling like he is going to die; weight has been fluctuating a lot; Tested Positive for Covid was reported as worsened/No Smell; Taste buds deminishing was reported as worsened/Chest Feels Tight was reported as worsened; This is a spontaneous report from a contactable consumer (patient). A 25-years old male patient received BNT162B2 (PFIZER-BIONTECH COVID VACCINE, Solution for injection, Batch/Lot Number: EW0153, NDC number and Expiry Date: Unknown) via an unspecified route of administration (thought he got it in his right or maybe left, he did not remember) on 15Apr2021 (at the age of 25 years old) as Dose 2, single for COVID-19 immunization. The patient's medical history included, ongoing asthma (Later in life as an adult), nephrotic syndrome (As a Child) from an unknown date and unknown if ongoing, Penicillin (allergic) from an unknown date and unknown if ongoing. Patient took no other products. Historical vaccine included BNT162B2 (PFIZER-BIONTECH COVID VACCINE, Solution for injection, Batch/Lot Number: ER8732)via an unspecified route of administration on 24Mar2021 as Dose 1,Single (at the age of 25 years old) for COVID-19 immunization. Time the vaccination was given in afternoon. The patient underwent lab test and procedure which included COVID 19: positive on 09Aug2021. The patient had not taken vaccine it since he was a kid. The patient did not take Prior Vaccinations (within 4 weeks), did not had any adverse events following prior vaccinations. The patient reported that he and his roommate both symptomatic and positive (09Aug-2021, Monday) for COVID-19 Infection after being fully vaccinated with the PFIZER BIONTECH COVID-19 Vaccine. He experienced no smell, taste buds diminishing, chest tightness all on 12Aug2021, he thought his parents say he puffs up and cannot breathe, sniffles (08Aug2021), fatigue, cough (08Aug2021), and feeling like he is going to die (on an unspecified date in 2021) he was 65% sure he is going to die, his weight has been fluctuating a lot (on an unspecified date in 2021), he is almost to 160, his goal weight, he was reading on the internet says when he can't breathe or his chest feels tight, it is time to go to the hospital and they smack him on a ventilator and then he dies, he stated that he did not understand how this could happen and was wondering what he should do as he does not have a primary care physician, he was not fat or old and questioned that the vaccine does not work for young people, who is it supposed to work for? The patient stated it was really (bad word) bad, he did not know how that happened, he was working in a restaurant before with no vaccine and he never got COVID, he is unemployed and had both vaccines, but now he had COVID, he questioned what does he do? Why he has smell or taste, why does his chest hurt? Caller states he thought he was protected because he had the vaccine. The patient stated that breakthrough infections have been reported, especially with the new Delta variant circulating at this. The patient was asked to call his vaccination provider or healthcare provider if he has any questions about this topic or the safety or efficacy of Pfizer-BioNTech COVID-19 Vaccine. The patient stated it had not occurred to him that it might be COVID, but it was COVID, which was weird. States he had some scares through the Pandemic, and he tested 3 times negative and now he does not know how he could have gotten it, he guesses because everyone was not wearing a mask. The patient did not visit Emergency Room and he stated did not wanted to die in an Emergency Room, so even if he needed to, he was not going to go to Physician Office. Treatment included with Gatorade and Ibuprofen for events fatigue and his chest hurt. The outcome of events Tested Positive for COVID was reported as worsened/No Smell; Taste buds diminishing was reported as worsened/Chest Feels Tight was reported as worsened, weight has been fluctuating a lot and feeling like he is going to die was unknown and for all other events was not recovered.