Blood Clot in right leg; Severe pain in leg; cry; This is a spontaneous legal report (Marketing Program) from a contactable consumer (patient himself). A 52-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE solution for injection) dose 2 (Batch/Lot Number: EW0770) via an unspecified route of administration, on 21Apr2021 11:30, as single dose for covid-19 immunization.  Medical history included Asthma ongoing, Diabetes had been on and off since 2018, Covid-19 in an unspecified date in Jan2021. The patient received dose 1 (Batch no/Lot Number: ER8732) via an unspecified route of administration, on 29 Mar 2021, as single dose for covid-19 immunization. The patient's concomitant medications were not reported. On 21Apr2021 around 11:30-12:00 in the night the patient experienced Blood clot in his right leg, had a severe pain and cannot walk, feels like he's being stabbed in the leg every time he gets up. He had to keep his legs up all the time and not put them down. He stated that his life was going to be upside down for 6 months because of the Covid vaccination. Stated that was unacceptable. Reporter also said that if the blood clot breaks off it could be dangerous. Said it was substantial; it was all the way up to his groin, not its down almost to his knee and goes all the way down to his ankle. Patient went to the hospital last Saturday due to pain in the back of his leg. The pain started 12 hours after the second Covid vaccine. He wanted to cry he was in so much pain. He could not take anything for it. Patient stated that if the clot breaks off, he was dead. So, he had to put everything on hold because he did the right thing which ended up being the wrong thing. Patient stated that the pain in his leg was a 13 or 14 on a scale of 1-10. Patient took Tylenol and Pain patches did not work on a blood clot. Patient stated that when he was in the hospital, 4 different doctors, told him the event was at least 50 if not 100 percent caused by the Covid dose of vaccine. Patient stated that after the first dose of vaccine he was sick as a dog and he said that the clot may have started with the first dose of vaccine, stated that he had a 102 degree fever a few minutes after the vaccination, felt dizzy and thought he was going to fall over. Patient stated that he got the vaccination dose to get his life back and now he could not, that what about in 6 months if he had to get a booster vaccine and probably go through it all over again; or to be on quarantine. Patient stated that he went with his 84-year-old mother to get the vaccine. Patient said that the only reason she didn't get a blood clot was because she was already on blood thinners and said that he is the one who takes care of his mom and now he cannot walk barely, he had Covid in January and that people who had Covid shouldn't be taking these vaccinations because they have immunity, he talked to a doctor and a woman yesterday who still have their antibodies a year after having Covid. He said that the vaccine was injuring people. He was hospitalized related to his leg pain and diagnosed with the blood clot from 24 Apr 2021 to 27 Apr 2021. In the hospital he was told to him take Oxycontin or Morphine. He said that he did not want to take those and end up addicted. He said after a motor vehicle accident he had in 2002 he took Naprosyn and it helped, he said could not take that now because he was on a blood thinner. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. The patient had tested COVID-19 positive prior to vaccination.  This is to notify that potential legal action from a reporter in the attached source document booked into AER 2021506757 and 2021506972.  The outcome of the event Blood Clot in right leg and Severe pain in leg was not recovered, feels like he's being stabbed in the leg was recovered and cry was not recovered.  Information on Lot/Batch number was available. Additional information has been requested.