around 3 o'clock in the morning she got a cold shiver / Shivering; shaking; her temperature, and it was 100.4 at that time; felt hotter so she took her temperature again, and it was 100.7; felt hotter so she took her temperature again, and it was 100.7/ took Advil to reduce her fever; had muscle pain in her leg; couldn't walk right on Friday, 20 Aug 2021; had sinus pain on Friday up in her forehead, eyes, and cheeks; felt sleepy; felt tired; didn't feel very well afterwards; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 72 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 19Aug2021 10:30 (Lot number: FD8448) at the age of 72 years as dose 2, single for covid-19 immunisation. The patient's relevant medical history was not reported. The patient took concomitant medications. Vaccination history included: Bnt162b2 (DOSE 1, Lot: FAC780, left arm), administration date: 30Jul2021, when the patient was 72 years old, for Covid-19 Immunization, reaction(s): "Sore arm"; Bnt162b2 (DOSE 1, Lot: FAC780, left arm), administration date: 30Jul2021, when the patient was 72 years old, for COVID-19 immunization, reaction(s): "She was tired"; Bnt162b2 (DOSE 1, Lot: FAC780, left arm), administration date: 30Jul2021, for COVID-19 immunization, reaction(s): "took a lot of naps". The following information was reported: MALAISE (non-serious) with onset 2021, outcome "unknown", described as "didn't feel very well afterwards"; CHILLS (non-serious) with onset 20Aug2021, outcome "recovered" (20Aug2021), described as "around 3 o'clock in the morning she got a cold shiver / Shivering"; TREMOR (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "shaking"; BODY TEMPERATURE ABNORMAL (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "her temperature, and it was 100.4 at that time"; FEELING HOT (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "felt hotter so she took her temperature again, and it was 100.7"; PYREXIA (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "felt hotter so she took her temperature again, and it was 100.7/ took Advil to reduce her fever"; MYALGIA (non-serious) with onset 20Aug2021, outcome "recovered" (20Aug2021), described as "had muscle pain in her leg"; GAIT INABILITY (non-serious) with onset 20Aug2021, outcome "recovered" (2021), described as "couldn't walk right on Friday, 20 Aug 2021"; SINUS PAIN (non-serious) with onset 20Aug2021, outcome "recovered" (Aug2021), described as "had sinus pain on Friday up in her forehead, eyes, and cheeks"; SOMNOLENCE (non-serious) with onset 20Aug2021, outcome "unknown", described as "felt sleepy"; FATIGUE (non-serious) with onset Aug2021, outcome "unknown", described as "felt tired". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of body temperature abnormal, pyrexia.  Additional information: It was reported that, patient and her husband received their 2nd Pfizer covid vaccine dose on Thursday, 19Aug2021. "They stayed in all weekend because they didn't feel very well afterwards." her husband takes "Ibrance" due to cancer in multiple places. "He had blood work done in Feb2020 and his number was 368 and then he had bloodwork done in Jun2021 and it was down to 178, it had dropped 190 points." His WBC is "right in the middle, not too low and not too high." Patient asking for information about the "Booster dose in September", how long do we need to wait. With her first dose she was fine all she had was a sore arm. She was tired the second day, and took a lot of naps. Her second dosage was on Thursday morning, 19Aug2021 at 1030 am. She was fine Thursday all day. She went to bed fine. Then, around 3 o'clock in the morning she got a cold shiver. She was shaking when she went to the bathroom. She was physically shaking. Her Husband got out of bed, and he was fine at that time. He got her some hot tea and honey. She drank that to get warm. She had to put on a heavy shirt because she was really shaking all over. She took her temperature, and it was 100.4 at that time. She bundled herself up, and went back to bed. When she woke up again, she felt hotter so she took her temperature again, and it was 100.7. She went and got some ice and some cold water in a pan. She got a wash cloth, and put the cold water on her forehead and drank some water. When she got up again her temperature was 99.5. She also took Advil to reduce her fever. That helped it get to 99.5. She doesn't have the UPC/lot/expiration for the Advil. Her fever would go down to 98 then back up to 99 back and forth, until it finally broke. She felt sleepy all day on Friday 20Aug2021. The chills went away and she also had muscle pain in her leg, and couldn't walk right on Friday, 20Aug2021. She had to take another bath with hot water for her muscles. By the end of the day 20Aug2021 she was feeling much better. They were watching tv, and she felt kind of normal. She saw more improvement on Saturday, but just felt tired and had to take naps, 2 hour naps. She was still tired out that she couldn't do much work so she just laid down. She had sinus pain on Friday up in her forehead, eyes, and cheeks. Then that went away. She thought maybe that was because of the bad weather coming because she gets sinuses. Sunday was fine. She was totally recovered. She did not have to go the doctor or ER.  No follow-up attempts are needed. No further information is expected.