chills; Swelling in the patient feet and legs seems to be improving due to vaccine; feet are now red, not purple; swelling is going down; The skin is hanging down from where the swelling has decreased and the skin was stretched out.; This is a spontaneous report from a contactable consumer or other non-HCP (patient herself).  A 77-year-old female patient received BNT162b2 (PFIZER BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Lot number- EL9269) via an unspecified route of administration in left arm on 13Feb2021 as dose 2, single (at the age of 77-years-old) for COVID-19 immunization. Patient medical history was not reported. The concomitant medication included gabapentin taken for neuropathy peripheral at a dose of 400 mg at night since 8 years, zinc taken for an unspecified indication, vitamin D NOS taken for an unspecified indication, hydrochlorothiazide (HYDROCHLORZIDE) taken for Diuretic at a dose of 25 mg, spironolactone taken for polyuria and diuretic at a dose of 25 mg. Historical vaccine included first dose of BNT162b2 (PFIZER BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Lot number- EL3257) via an unspecified route of administration in left arm on 23Jan2021 17:00 as dose 1, single for COVID-19 immunization and experienced legs were swollen, the skin on her leg has red blotches, her feet turned blueish/purple, the blood goes down to the patient feet but did not go back to her hearts, she got diagnosed with venous insufficiency. It was the circulation in the legs. At first they said it was lymphedema but then they said No. Other historical vaccine included vaccine for flu taken for immunization, pneumonia, shingles and she never had any side effects from them. On an unspecified date in 2021, the patient experienced feet are now red, not purple, swelling is going down, the skin was hanging down from where the swelling has decreased and the skin was stretched out. The following event started after the first dose of the vaccine and has continued through the second dose of the vaccine and was still continuing. The patient feet were now red, not purple and her swelling was going down. The skin was hanging down from where the swelling has decreased and the skin was stretched out. She had tried compression stockings, she had been everywhere trying to see what this was. At first the  doctors said you don't get that from the vaccine but now with the reports of blood clots they're starting to think it could be from the vaccine. The blood goes down to the caller's feet but doesn't go back to her hearts, she got diagnosed with venous insufficiency. The swelling in the patient feet and legs seems to be improving which is what vaccines do on an unspecified date in 2021. The patient had tried compression stockings, she tried to see everywhere what this was. At first the doctors said you did not get that from the vaccine but now with the reports of blood clots they thought it could be from the vaccine. The blood goes down to the patient feet but did not go back to her hearts, she got diagnosed with venous insufficiency. The swelling in the patient feet and legs seems to be improving which is what vaccines do on an unspecified date in 2021. After the second shot, the patient got chills on 14Feb2021. This lasted a couple of hours and when then she woke up, the chills were gone, other than that she did not have anything. The patient already had both doses of the Pfizer covid shot but if she had to have a booster shot she questioned if she can get Moderna or something. The patient had a picture of her legs a week after this all started and was willing to provide it if needed. She had tried acupuncture and the chiropractor. The patient underwent lab tests and procedures which included ultrasound scan and showed no blood clot or artery blockage on an unspecified date. At the time of this report, the outcome of event feet are now red, not purple are not recovered, swelling is going down, the skin is hanging down from where the swelling has decreased and the skin was stretched out was recovering, chills was resolved on an unspecified date in Feb2021 and swelling in the patient feet and legs seems to be improving due to vaccine was unknown.   No follow-up attempts are possible; information about lot/batch number cannot be obtained.