Caller stated that took Tylenol prior to receiving both doses of the vaccine for her arthritis.; she stated her neck discomfort is barely noticeable, and she may have slept wrong on her neck last night; left arm discomfort; This is a spontaneous report from a contactable consumer (patient). An 85-year-old female consumer reported that she received the second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot: EN9581, Expiration date, NDC number: unknown) via an unspecified route of administration in left arm on 04Feb2021 at 09:15 AM for covid-19 immunization. No additional Vaccines Administered on Same Date of the Pfizer Suspect. No prior vaccinations within 4 weeks. The patients medical history includes ongoing Arthritis for approximately 3-5 years (saying the arthritis has come on gradually) and Total Right Knee Replacement about 14 months ago. The patients concomitant medication included Zinc Chewable from Jan2021 and ongoing as Supplementation therapy and acetaminophen/paracetamol (Tylenol 8 Hour, 650mg, Extended-Release Tablets, UPC Number was not listed on the Tylenol Arthritis product bottle, Lot Number: FMA062, UPC Number was not listed on the Tylenol Arthritis product bottle, Expiration Date: Aug2023) at 650 mg (one tablet) dose on 04Feb2021 for arthritis/arthritis pain prior to receiving both doses of COVID-19 Vaccine.. Historical vaccine included first dose of BNT162B2 (Solution for injection, Batch/Lot: EL3302, NDC Number, Expiration date unknown) intramuscular (at the age of 85 years) in left arm on 13Jan2021 at 16:30 for covid-19 immunization. On 05Feb2021, the patient experienced a little bit of neck and left arm discomfort after the second COVID-19 Vaccine dose, and that the discomfort was barely noticeable. It was reported that the patient took Tylenol 650mg (She stated a UPC Number was not listed on the Tylenol Arthritis product bottle; Lot Number: FMA062; Expiration Date: Aug2023) prior to receiving both doses of COVID-19 Vaccine (Jan2021 to 04Feb2021: as reported) for her arthritis. She stated her neck discomfort is barely noticeable, and she may have slept wrong on her neck and left arm discomfort on 05Feb2021 which is ongoing. Stated she was told Zinc would be a good thing to take before getting her COVID-19 Vaccine. She does not have the Zinc product packaging to provide the UPC, Lot, and Expiration Date. She did not realize Pfizer recommends not to take Tylenol before the COVID-19 Vaccine shot then she read through the COVID-19 Vaccine information that was given to her and saw Pfizer recommends not to take Tylenol. She was worried because she took the Tylenol Arthritis before her COVID-19 Vaccine dose. Her friends daughter who is a nurse told her to take a Tylenol before she took the COVID-19 Vaccine shot. That is why she took the Tylenol and asked if taking Tylenol will affect the COVID-19 Vaccine. Also, her height is about 5'7", she used to be 5'8", but her arthritis has taken her down to 5'7". She did not feel anything after taking her first dose. She said she had no reaction to the second COVID-19 Vaccine. She clarified she may have slept on her neck wrong, but her neck and left arm discomfort are not bad at all. She has not taken anything for her neck and left arm discomfort. She does not take anything stronger than Tylenol Arthritis. She clarified she took one acetaminophen (TYLENOL 650mg, Extended-Release Tablets, Lot Number: FMA062, UPC Number was not listed on the Tylenol Arthritis product bottle) 8 Hour (as reported) for arthritis pain prior to COVID-19 Vaccines. She has not administered any additional vaccines on same date as the suspect drug. She was not taken to the emergency room or the physicians office. No family medical history relevant to adverse events was provided and no relevant tests were performed. Outcome of the events was not recovered.  No follow-up attempts are possible. No further information is expected