Legs, ankles and feet started to swell up; spinning and light headedness did not go away; spinning and light headedness did not go away; The patient was hospitalized and had heart tests done; heart was racing; Extremely tired and could not move; Extremely tired and could not move; Legs, ankles and feet started to swell up; Legs, ankles and feet started to swell up; Lost 15lbs these three months; The biggest thing was the patient had very low iron, very low blood; patient's blood work was completely out of whack; This is a spontaneous report from a contactable consumer. A 65-year-old male patient (husband) received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation was Solution for injection, Lot Number: not reported), DOSE 2, SINGLE via Arm on 02Apr2021 16:00, as single dose for COVID-19 immunization (Age at vaccination site 65 year). The patient medical history and concomitant medications were not reported. The patient previously took first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation was Solution for injection, Lot Number: not reported), DOSE 1, SINGLE on an unspecified date at 15:00 in arm, as single dose for COVID-19 immunization. The patient had not received any other vaccines within 4 weeks prior to the COVID vaccine. The patient was not diagnosed COVID-19 Prior to vaccination, Since the vaccination, has the patient been tested for COVID-19 as no. The patient was hospitalized on 14Jul2021 to 16Jul2021. Prior to being hospitalized, two weeks after receiving the second dose Pfizer Covid Vaccine the patient started having a reaction and went to the doctor. The doctor said to give it 4 to 6 weeks. Meanwhile, the patient's heart was racing. The patient was lightheaded. heart was racing: When asked when this began, the consumer stated the second dose Pfizer Covid Vaccine was received on 02Apr2021 and within two weeks after the patient started having symptoms. The symptoms progressively got worse. The patient was extremely tired and could not move. The patient went through all the heart test, an echo, an EKG and come to find out everything was fine with the consumer heart. The patient's legs, ankles, and feet started to swell up. The consumer stated this began after the heart stuff. The patient called the doctor again and was told to cut down on salt if using too much. The patient wasn't really using too much salt but cut the salt out completely. The swelling of the legs, ankles and feet lasted about a week or two. Extremely tired and could not move and spinning and light headedness did not go away. More blood work was done, and the patient blood work was completely out of whack. All the callers can say is they were the main things. The biggest thing was the patient had very low iron, very low blood. A specialist was called in for the liver and kidney function. The specialist said a virus attacked the patient's blood and this is what happened. The patient was given a Procrit shot in the hospital, an IV and heparin. The patient had CAT scans, ran a lot of blood work. Blood work was done every 4, 6 or 8 hours, started at every 4 hours and went to every 8 hours. The consumer stated everything began right after the patient received the second dose Pfizer Covid Vaccine. Consumer clarified, everything began two weeks after the patient received the second dose Pfizer Covid Vaccine. If the consumer gets up a little fast, yes the spinning and light headedness are still ongoing, but nothing like it was. because the patient was given an IV at the hospital. The patient has lost 15lbs these three months. It is not like the patient to lost 15lbs. When asked if this is ongoing or has stopped, the caller replies the patient is holding his own right now. The outcome of event (Dizziness, vertigo) was recovering and (Legs, ankles and feet started to swell up) was recovered in 2021 and event of (Fatigue) was not recovered yet and rest of all events were unknown.