fever of 100.6; she was achy and sore; This is a spontaneous report from a contactable consumer reporting for herself via the Pfizer-sponsored program. A 56-year-old female patient received the first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number and expiry date were not reported) via an unspecified route of administration, on 14Jan2021 11:55AM at a single dose on the left arm for COVID-19 immunization. The vaccine was administered at a Senior Living Facility. It was not administered at a military facility. The patient had no vaccinations within 4 weeks prior to receiving the Pfizer vaccine. Medical history included breast cancer from Sep2020 (was diagnosed with breast cancer in early Sep2020), mastectomy (she finally had a mastectomy because she was diagnosed as having the breast cancer gene) on 26Oct2020, pacemaker insertion (cardiac) (she has a pacemaker that was in the way of treating her breast cancer), COVID-19 from 29Nov2020 to Dec2020 (duration of reaction: 2 days), hospitalization due to COVID-19 from 29Nov2020 to 08Dec2020, foot surgery (a year ago) in 2020, and gained the remaining weight. The patient has put on 30 lbs. during the COVID-19 pandemic. She clarified she had foot surgery a year ago, and first put on 10 lbs., and then after the pandemic, and being diagnosed with breast cancer, gained the remaining weight. Her COVID-19 test was done on the day after Thanksgiving, clarified as 27Nov2020. She said she was told on 27Nov2020 that she had regular pneumonia and was given medication and was sent home. She said she was too sick to get out of bed, and her doctor told her to go to the emergency room. She said she went to the hospital and the hospital told her she was given the wrong medication for her pneumonia. She said while she was at the hospital emergency room, she was diagnosed with the COVID-19 Virus, and she was admitted to the hospital. She said she and her family were quarantined from the time of her hospital discharge on 08Dec2020 until Christmas week 2020. She said the CDC recently changed the guidelines for having surgery after being diagnosed with the COVID-19 Virus. She said the CDC guidelines say a person cannot have surgery until 8 weeks after having the COVID-19 Virus. She said her surgery was originally scheduled for 18Jan2021 but had to be pushed out to 05Feb2021. Concomitant medications were not reported. The patient received her first dose of the COVID-19 Vaccine on Thursday, 14Jan2021, and then developed a fever of 100.6 on Friday night, 15Jan2021. She said she knows she didn't have a fever earlier in the day on 15Jan2021 because she has her temperature scanned at work before she can enter the building. She said all day long she was achy and sore on 15Jan2021, but thought the achiness and soreness was because she just went back to work. She said she realized later in the day on 15Jan2021 that things really weren't right. The adverse events did not require a visit to Emergency Room or Physician Office. In response to fever, she took a Tylenol Extra Strength 650mg Rapid Relief. She was miserable at the time she took the Tylenol, but felt fine by the next day, 16Jan2021. She added that she takes the Tylenol Extra Strength 650mg Rapid Relief regularly in the morning and at night and just finished the bottle.  She stated she is having surgery the day after she is scheduled for her 2nd vaccine dose. She would like to wait longer to receive the 2nd dose. She asked if the vaccine has to be exactly 3 weeks apart. She said she has a question about her second COVID-19 Vaccine dose. She asked if the second COVID-19 Vaccine dose has to be given at exactly 21 days. She clarified she received her first COVID- 19 Vaccine dose on Thursday, 14Jan2021, and her second dose is scheduled for 04Feb2021. She was asking about the length of time between receiving the first COVID-19 Vaccine dose, and the second COVID-19 Vaccine dose because she is scheduled for major surgery the day after she is supposed to receive the second COVID-19 Vaccine dose. She reported that she had COVID-19 back in Nov2020 and was hospitalized. Since she has major surgery scheduled for the day after the second Pfizer COVID-19 Vaccine dose, she asked if it is safer to move her second COVID-19 Vaccine dose now than for her to get the second COVID-19 Vaccine dose the day before her major surgery and risk having a temperature, and possibly having her major surgery cancelled and rescheduled. She said she either has to reschedule the date for her second COVID-19 Vaccine dose or move the date for her surgery. She said she was diagnosed with breast cancer (in early Sep2020), and if she changes her surgery date, the new surgery date will be moved way out. She said she needs to get the surgery over with. She asked if she gets her second COVID-19 Vaccine dose on Thursday, 04Feb2021, can she still have her surgery on Friday, 05Feb2021. She asked does she have to get the second dose of the COVID-19 Vaccine exactly at 21 days from her first COVID-19 Vaccine dose. She said she asked her surgeon (clarified as a plastic reconstructive surgeon), and her surgeon doesn't know. Outcome of the events was recovered on an unspecified date in Jan2021.   Information on the lot/ batch number has been requested.