my right foot started to bother me on the ball of my foot. It is swollen and hurts to walk on.; my right foot started to bother me on the ball of my foot. It is swollen and hurts to walk on.; pain down the left side then nothing else but a little in the arm; This is a spontaneous report from a contactable consumer (patient) via Medical information team. A 82-years-old female patient received first dose of bnt162b2 (BNT162B2, Solution for injection, Lot Number: EL9262; Expiration Date: 31May2021), via an unspecified route of administration, administered in top of left arm on 26Jan2021 (at the age of 82-years) as 0.3 mL, SINGLE DOSE for covid-19 immunization. Medical history included: sinus disorder, gastrooesophageal reflux disease, cholesterol. She has had cholesterol for years. She has sinus problems on and off. She suffers from GERD. She was on a pill to help with the stomach prior, but not on it now. She took the last one on 30Jan2021. She had been on it for two months. She doesn't remember the name of the medication. It was a time released capsule. The patient did not receive any prior vaccinations within 4 weeks. Concomitant medications included: ongoing simvastatin (20 mg at night) taken for blood cholesterol and unspecified vitamins. She has been on simvastatin (generic for Zocor) for about eight years. She was on Lipitor (strength: unknown) for years and changed to Simvastatin. She got off Lipitor because she felt like it wasn't doing what it was supposed to do. Caller doesn't have product to provide lot number. She hasn't been on it for 10 to 12 years. No vaccines administered on same date of the Pfizer suspect. On an unspecified date in Jan2021, the patient had pain down the left side then nothing else but a little in the arm. On 30Jan2021, the patient's right foot started to bother on the ball of her foot. It was swollen and hurts to walk on. The clinical course included: the patient got her COVID shot on Tuesday (26Jan2021). She did in the middle of the night have pain down the left side then nothing else but a little in the arm. Then on Saturday (30Jan2021), her right foot started bothering her on the ball of her foot. It was a burning sensation. Yesterday was very bad and she could hardly walk. It is swollen on the bottom of the ball of her foot and across the top where her toes are. Her son just kept calling and telling her to check her temperature and pulse rate. She took Tylenol (strength: 500mg, Lot number: HDAO52; she had only taken two of them and it expired on Feb2019. She took one yesterday afternoon and one last night when she went to bed), applied ice (off and on), and elevated it and the swelling didn't go down. She did elevate it above her heart. Again, this morning she has the same thing. She was having a heck of a time walking. It was very painful. She was hoping she can walk normal again. It was still painful today. If she accidentally bumps it, it hurts. It was swollen. It started 4 days after receiving the vaccine. Caller stated she no longer had the problem with her arm. She has recovered completely. It was only bothering her a little bit on the twenty seventh (27Jan2021), but nothing to be concerned about. Investigations included: She hasn't been able to taste for some time and had a COVID test in December and she was negative. She was still having trouble tasting and had a CT scan of her sinuses last week (results not reported). She will follow up with her doctor about that. The outcome of event pain down the left side then nothing else but a little in the arm was resolved on an unspecified date in 2021 and for other events it was unknown.   Follow-up attempts are completed. No further information is expected.