really bad chills; fever; joint pain; soreness/achiness; she was really stiff and she could not walk real good; she was really stiff and she could not walk real good; This is a spontaneous report from a contactable consumer (patient). A 75-year-old female patient received her first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number EL3247, expiration date May2021), intramuscularly on right arm on 23Jan2021 10:50 at 0.3 mL single for COVID-19 immunization. Medical history included ongoing arthritis, right knee replacement from Aug2019 to an unknown date, ongoing high blood pressure, a long list of antibiotics that she was allergic to/certain types of mycin, allergic to penicillin, covid-19 from 23Dec2020 to an unknown date. Concomitant medications included unspecified a lot of medications. The patient previously took flu vaccine in 2020 for immunization, codeine and experienced drug allergy (she cannot take codeine), norvasc and experienced drug allergy (certain types of mycin, several types of blood pressure medication like norvasc). The patient woke up early at 6:00am on 24Jan2021 with really bad chills, fever and joint pain. Her temperature was 101.6 after taking Tylenol. Her arm felt like there was a small "know" in it. Some soreness, but feeling better. The patient had a really bad day yesterday on 24Jan2021, she experienced really hard chills about 5 or 6 episodes of chills. Her temperature got up to 101.6 and that was with Tylenol. She felt better today and her temperature was back to normal on 25Jan2021. She had soreness, achiness, she was still sore in regards to her muscle. She got over covid. She was diagnosed with covid on 23Dec2020, about 30 days ago. She got the first dose of the vaccine on 23Jan2021 and she was scheduled then since she was told to wait about 30 days after being diagnosed with COVID. She heard the second shot might be more intense and asks if that was right. She called the doctor. When querying lot number, she put her glasses back on to read the stamp on the card. She had to get under the lamp since it was kind of blurry. She could not read the lot number on the card and had to get a magnifying glass and then was able to provide lot. The first episode of chills happened during the night and woke her up about 6 am on 24Jan2021, when she got up she was really stiff and she could not walk real good. She had to hold on to something when she got up to go to the bathroom. The chills that were so bad were yesterday from 11 till about 4 or 5. Around 6 or 7 pm yesterday she had lighter chills. She got real red in the face since she was hot and her temperature was going up. Reported she took Tylenol earlier than she should have taken it since it was scaring her. Her temperature was good since she woke up. It was about 100 when she went to bed last night on 24Jan2021. The achiness and soreness started when she got up around 6am yesterday and it was still there but much better. Reports she had arthritis and her joints were sore anyways but this soreness was more. She had a lot of medication that she takes but does not feel they are relevant to provide at this time. The outcome of events joint pain and pain was recovering. The outcome of event fever was recovered on 25Jan2021. The outcome of event chills was recovered in Jan2021. The outcome of rest events was unknown.