Weird feeling; Getting sick; Chills; Had joint pain and a headache; Had joint pain and a headache; Light ache; Fever/temperature started out at 99.9 and went up to 101; This is a spontaneous report from contactable Female consumer via Pfizer-sponsored program. A 73-year-old female patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Solution for injection, Lot number: EL9265 and expiration dates were not reported), via an unspecified route of administration in left arm on 01Feb2021 at 11:20 as first dose, single for COVID-19 immunisation. The patient medical history included Asthma and it was ongoing and arthritis and she has it in her neck as well. The concomitant medication included Symbicort as long lasting nasal spray, Fexofenadine and Nasacort for asthma and Vitamin For unknown indication from an unspecified date. The reporter reported patient had her first vaccination of the shot on 01Feb2021. She has had side effects since getting the vaccine starting on Thursday. She mentioned she still has fever today and stated it seems long to have a fever, but she wants to know when is too long to have a fever. She had tried to contact her doctor to ask questions about the scale of how long the symptoms can last. She stated she was having more symptoms that most people were; no additional details provided. The doctor's office told her she needed to contact the place where she got the shot for her questions. Patient stated she may have had a fever somewhat on 05Feb2021, but she was not fully aware of it until 06Feb2021. Her temperature started out at 99.9 and went up to 101. This morning it is back to 99.9. she further explained she felt a little weird, had a little ache throughout her body on Thursday, clarified as 04Feb201. This let her know and alerted her that she was getting sick. On Friday 05Feb2021 she started to have joint pain and headache. At first she was not sure what was happening. She mentioned she already has arthritis and she has it in her neck as well. She did not know if it was technically from the arthritis or the vaccine, but she was taking it occurred from the vaccine. She later added that while on Friday she noticed the headache/head hurt, she also hurt everywhere she has arthritis, joint pain. This resolved on its own. She also added she had chills and this was on 06Feb2021. She felt some during the day, but she noticed it mostly during that night. The following morning 07Feb2021 her temperature was 101 and then it dropped again this morning. She stated she took Tylenol. On Thursday, she had something she cannot fully describe what it was, just a weird feeling. When she starts to get sick it is like a wave going through her body; she can tell when she was getting sick. The patient underwent the lab test for body temperature that was 101 on 04Feb2021 and come down to back to 99.9 on 05Feb2021. The outcome of the event Light Ache recovered on 04Feb2021, Chills, Headache and Joint Pain was recovered on 06Feb2021 and the outcome of the event Getting sick and Weird feeling was unknown and Fever was not recovered.  Follow up (08Feb2021): This is a follow up spontaneous report from a contactable consumer. This consumer reported that: The information about the patient, new event, event onset and outcome, concomitant products were updated in the case.  Follow-up attempts are completed. No further information is expected.