Cold sweat; Nauseous/nausea; threw up; Headache/wasn't a migraine, but a bad headache; Stiff neck; she felt lousy; Difficulty sleeping; very thirsty/got out of bed five times to get a drink of water; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 73 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 09Mar2021 12:00 (Lot number: EN6204, Expiration Date: 30Jun2021) at the age of 73 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Osteoarthritis" (unspecified if ongoing); "High Blood Pressure" (unspecified if ongoing); "Anxiety" (unspecified if ongoing). Concomitant medication(s) included: AMLODIPINE BESYLATE taken for hypertension (ongoing); ATENOLOL taken for hypertension (ongoing); PAROXETINE taken for anxiety. Vaccination history included: Bnt162b2 (lot number: EL9266, expiry: 31May2021, Anatomical Location: upper left arm), administration date: 16Feb2021, when the patient was 73 years old, for covid-19 immunisation, reaction(s): "no adverse event". The following information was reported: INSOMNIA (non-serious) with onset 09Mar2021, outcome "unknown", described as "Difficulty sleeping"; THIRST (non-serious) with onset 09Mar2021, outcome "unknown", described as "very thirsty/got out of bed five times to get a drink of water"; COLD SWEAT (non-serious) with onset 10Mar2021, outcome "unknown", described as "Cold sweat"; NAUSEA (non-serious) with onset 10Mar2021, outcome "unknown", described as "Nauseous/nausea"; VOMITING (non-serious) with onset 10Mar2021, outcome "unknown", described as "threw up"; HEADACHE (non-serious) with onset 10Mar2021, outcome "recovered" (10Mar2021), described as "Headache/wasn't a migraine, but a bad headache"; MUSCULOSKELETAL STIFFNESS (non-serious) with onset 10Mar2021, outcome "unknown", described as "Stiff neck"; MALAISE (non-serious) with onset 10Mar2021, outcome "unknown", described as "she felt lousy". Therapeutic measures were taken as a result of headache.  Additional information: She said she was scheduled for hip replacement and have it on on 05April2021. She asked are there any long-term side effect that will affect the surgery. She just wanted to report some side effects from the Pfizer inoculation. Side effects were after the second dose. The first evening she had no side effects, but she had difficulty sleeping and was very thirsty. She got out of bed five times to get a drink of water and that is not something she normally had to do. When she got up in the morning, she suddenly broke into a cold sweat and was nauseous and threw up. The headache lasted most of yesterday. It was not a migraine, but a bad headache. She had a stiff neck. She felt lousy. She got the second dose on 09Mar2021 around 12:00PM. She only had difficulty sleeping on 09Mar2021. She slept like a rock last night. She was not thirty last night either. She only had the cold sweat, nausea, and threw up once. It was very surprising. It was 10Mar2021 when that happened. She took Acetaminophen and it seemed to resolved the headache. She only took one and it was extra strength. They are 500mg gel caplets. She had the stiff neck on 10Mar2021 and now it was gone. She only felt lousy yesterday, 10Mar2021. The adverse event did not require a visit to: Emergency Room or Physician Office. Prior Vaccinations (within 4 weeks): she only had the first Pfizer COVID19 Vaccine within four weeks of her second dose. The patient reported no adverse events following prior vaccinations.  No follow-up attempts are possible. No further information is expected.