left hand swelled, Swelling moved to the right hand; couldn't sleep; Pain moved to her right shoulder, in the joint area/Pain then moved to her left shoulder same as what's in her right shoulder in the joint area; Left hand was sore when moving her fingers on 28MAR2021, the pain was terrific and she could hardly stand it, pain moved to the right hand not as severe as the left but very painful; By Tuesday 30MAR2021 her hand had swelled, the pain was terrific and she could hardly stand it, had some redness and it throbbed and ached.; This is a spontaneous report from a contactable consumer (patient). An 86-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE Solution for injection; lot number ERL613 and expiry date not reported), via an unspecified route of administration, administered in Arm Left on 27Mar2021 14:00 (at the age of 86-year-old), as dose 2, single, for COVID-19 immunisation. Medical history included Type 2 Diabetic which was diagnosed at 50 years old (so 36 years ago), AFib, High blood pressure, osteoarthritis. Concomitant medication included apixaban (ELIQUIS, 5mg, 1 tablet twice a day by mouth) taken for atrial fibrillation from Jul2020 and ongoing and a lot of heart medications. Historical vaccine included BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE Solution for injection; lot number EN6205 and expiry date not reported), via an unspecified route of administration, administered in Arm Left on 06Mar2021 (at the age of 86-year-old), as dose 1, single, for COVID-19 immunization and was tired. No prior vaccinations within 4 weeks. History of other vaccinations included, other childhood immunizations; flu shot (Injection) in Left arm on Sep2020; pneumonia shot (1st shot) (Injection) in Left arm (was in her late 60's); pneumonia shot (2nd shot) (Injection) in Left arm (was in her late 70's); shingles vaccine (1st shot) (Injection) in Left arm (was in her late 70's); shingles vaccine (2nd shot) (Injection) in Left arm (was in her 70's), HIV Vaccine (1st shot) (Injection) in Left arm. On 28Mar2021 night, the patient left hand was sore when moving her fingers and thought maybe she injured the hand, but she did not fall or hit it on anything, and it was just sore. On 30Mar2021, the patient hand had swelled, the pain was terrific, and she could hardly stand it, had some redness and it throbbed and ached. It was reported that, the patient couldn't sleep from pain. On 30Mar2021, the swelling and pain moved to the right hand not as severe as the left but very painful and pain moved to her right shoulder, in the joint area. The patient took midol for pain. The patient went to doctor and took an X-ray of her left hand and diagnosed her with osteoarthritis of the thumb on her left hand which she already knew she had. The patient was diagnosed with osteoarthritis in her left hand before the COVID vaccine. The doctor said the patient could try the Tylenol and a cream Voltaren (Diclofenac Sodium 1 percent gel; Expiration: Nov2021, Lot: 2M2G). Then the hand cleared up and stopped aching in about 12 hours after taking with the Motrin and the Diclofenac. The patient took Motrin every 6-8 hours along with the gel every 6-8 hours. The Tylenol did nothing for her. It was reported that the pain was better but was still going on. The outcome for hand swelling and pain joints was not recovered, the outcome of couldn't sleep was unknown, outcome of pain in hand was recovering and the outcome of erythema was recovered.  No follow-up attempts are needed. No further information is expected.