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 70-year-old female patient received BNT162b2 (BNT162B2), as dose 1, single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history included: "injured in her sacral bone" (unspecified if ongoing), notes: She has clinical history of 2 years ago she was injured in her sacral bone; "injured in her sacral bone" (unspecified if ongoing), notes: She has clinical history of 2 years ago she was injured in her sacral bone. There were no concomitant medications. The following information was reported: PAIN (non-serious) with onset 2020, outcome "recovered", described as "body aches"; DRUG INEFFECTIVE (medically significant), COVID-19 (medically significant), outcome "unknown" and all described as "She only received one Covid19 Vaccine. Tested positive for Covid."; SPINAL PAIN (non-serious), outcome "unknown", described as "feeling a pain in the center of the spine"; BONE PAIN (non-serious), outcome "unknown", described as "injured in her sacrum bone"; LOSS OF PERSONAL INDEPENDENCE IN DAILY ACTIVITIES (non-serious), outcome "unknown", described as "She couldn't do any lifting or stand for too long"; OXYGEN SATURATION DECREASED (non-serious), outcome "recovered", described as "low oxygen / oxygen level was low (around 90)"; HEART RATE INCREASED (non-serious), outcome "recovered", described as "high heart rate/increased heart rate"; INFLAMMATION (non-serious), outcome "unknown"; SINUSITIS (non-serious), outcome "unknown", described as "felt like she was getting like sinus infection"; LYMPHADENOPATHY (non-serious), outcome "unknown", described as "lymph nodes were probable sensitive". The patient underwent the following laboratory tests and procedures: Heart rate: increased; she went up to 137 for heart rate; Oxygen saturation: oxygen level was low (around 90); Usually her oxygen level is at 97; SARS-CoV-2 test: Negative, notes: They tested her and she was negative for Covid at that time; Positive, notes: Tested positive for Covid. Therapeutic measures were taken as a result of drug ineffective, covid-19, spinal pain, bone pain, oxygen saturation decreased, heart rate increased, inflammation.  Clinical course: It was reported that case was non-serious. Caller asked if polyethylene glycol was a common ingredient between Paxlovid and the Pfizer COVID-19 Vaccine, Monovalent. Caller explained that she took the first dose of the vaccine in Feb2020. She had a response, but it was nothing bad. The next day (or the same night; she couldn't recall), she developed body aches that went really bad for 2 days. On the third day, those aches went away but she started feeling a pain in the center of the spine. She was told that her lymph nodes were probable sensitive. She couldn't be sitting, and she felt pain every time she turned around. 2 years ago, she was injured in her sacrum bone, but she hadn't had further problems within the next year. She was prescribed prednisone so she could take the second vaccine by the end of Mar. However, she also started developing increased hearth rate, her oxygen level was low (around 90), and these problems went on for 2 weeks.   No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.