Joints hurting/joint ache; Her left shoulder received the shot but the right is feeling worse; Feeling warm and cold; Knees are killing her with so much pain; Cold and hot sweats; Chills; She got very lethargic; She was very weak; She was falling asleep, she actually fell asleep for about 20-25 minutes; Body ache; Her fingers and feel like pain; Right is feeling worse as well/it was horrendously worse, like 10 times worse than her normal arthritis pain/her arthritis just worsened; This is a spontaneous report from a Contactable Consumer. A 54-years-old female patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for Injection, Batch/Lot number: EL3247) via an unspecified route of administration on 04Feb2021 10:00 (at the age of 54-year-old) as single dose for covid-19 immunisation. The patient's medical history included arthritis, (She has arthritis and she took 2 tylenol last night which made her able to sleep). Patient's concomitant medications were not reported. The patient had her 1st dose of the Pfizer Covid vaccine yesterday(04Feb2021) at 10 AM and started experiencing cold and hot sweats, chills, and joints hurting like body aches. The patient also complained that her left shoulder received the shot but the right is feeling worse as well. She is also reporting a body ache, joint ache, feeling warm and cold. She has arthritis and she took 2 tylenol last night which made her able to sleep. but today, all the symptoms came back and her knees are killing her with so much pain. The thing was she took it yesterday and she was fine with in a half hour she stayed, they had her stay 15 minutes and she stayed and stayed a little more because it was through her work, she works at a facility, an assisted living facility. The thing was that she came home and ate some eggs, she ate breakfast and she got very lethargic and was very weak and she was falling asleep, she actually fell asleep for about 20-25 minutes and she woke up and could not get up, she was very weak and had chills and went to get blanket she had some paperwork and it said she could experience this but she then after that she went upstairs and laid down and fell asleep and her joints started hurting like body aches, she has arthritis in her knees, she put on lotion and the thing was it was horrendously worse, like 10 times worse than her normal arthritis pain she was wondering kind of like what was going on was this side effects going on. Then it was hard for her to fall asleep she was kind of uppity and she did not fall asleep until 3 am, she got up she was hurting so bad and it was like the same locations that she usually gets pain from her arthritis just worsened, her fingers and feel like pain. She was wondering how long does it last. She did read the paper and it was part of it and she wanted to see does this last or does it go way or repeat itself. She reported that It started happening probably when she was 39 or 40. She clarifies that is when she first ever had joint arthritis pain. She clarifies the experience with the vaccine happened right now when she is 54. She confirms this was her first COVID 19 vaccine she did not previously received a different manufacturers COVID 19 vaccine. The outcome of the events reported was unknown.  Follow-up attempts are completed. No further information is expected.