Feet and legs swollen, left worse than right; Started walking around that it was doing the damage it was doing until he figured out he couldn't walk; Sick; Throwing up; Diarrhea/Diarrhea was reported as worsened; Headache; Got out of bed one day and fell to the floor; Blood clots in both legs; This is a spontaneous report from a contactable consumer (the patient). A 59-years-old male patient received second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Batch/Lot number: EW0153), via an unspecified route of administration, administered in right arm on 14Apr2021 (at the age of 59-years-old) at hospital as a single dose for COVID-19 immunisation. The patient's medical history and his family history were reported as none. There were no concomitant medications. The patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE) via an unspecified route of administration, administered in right arm on 24Mar2021 (at the age of 59-years-old) as a single dose for COVID-19 immunisation and experienced sick, headache, throwing up, diarrhea, fell, feet and legs swollen, left worse than right and he couldn't walk. No other vaccinations. On an unspecified date in Jun 2021, the patient experienced blood clots in both legs and on unspecified date the patient experienced sick, throwing up, diarrhea/diarrhea was reported as worsened, headache, started walking around that it was doing the damage it was doing until he figured out, he couldn't walk, got out of bed one day and fell to the floor and feet and legs swollen, left worse than right. The consumer stated that "he has been sick with both shots. Stated after the last shot he got blood clots in both legs and just got back from the doctor, stated the doctor said that the blood clots were caused by the vaccine. Consumer stated he went to see the doctor yesterday, 15Jun2021 at 09:00. Caller stated that after the first and second dose he has been throwing up, had diarrhea, a headache, and did not realize that when he started walking around that it was doing the damage it was doing until he figured out he couldn't walk, states one of the days, exact date not provided, he got out of bed one day and fell to the floor, stated then he realized what happened, stated it has been going on for a good while, stated his feet and legs swollen, started about 4 weeks ago, exact start dates of all events unknown. Stated he can hardly walk due to the swelling. Stated they gave him a medication for the diarrhea, exact name unknown. Stated they are treating the blood clots with Eliquis, two pills in the morning and two in the evening." Event Blood clots in both legs was required physician office visit. Therapeutic measures were taken as a result of blood clots in both legs, diarrhea/diarrhea was reported as worsened. The outcome of events blood clots in both legs, diarrhea/diarrhea was reported as worsened, headache, started walking around that it was doing the damage it was doing until he figured out, he couldn't walk and feet and legs swollen, left worse than right was not recovered whereas the outcome of sick and got out of bed one day and fell to the floor was unknown, throwing up was recovering.