She has been having dark, thick, sludgy, pasty stools; She began feeling tired; knee is a little swollen; She began having a lot of intermittent leg pain; She is totally continent of her bowel and bladder/ One day she could not hold it, and went all over herself; She is totally continent of her bowel and bladder/ One day she could not hold it, and went all over herself; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 60-year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 23Apr2021 11:00 (Batch/Lot number: unknown) at the age of 60 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Anxiety" (unspecified if ongoing). Family history included: "Blood pressure" (unspecified if ongoing), notes: She has low blood pressure. The patient's concomitant medications were not reported. The following information was reported: ABNORMAL FAECES (non-serious) with onset 26Apr2021, outcome "not recovered", described as "She has been having dark, thick, sludgy, pasty stools"; FATIGUE (non-serious) with onset Apr2021, outcome "unknown", described as "She began feeling tired"; JOINT SWELLING (non-serious) with onset Apr2021, outcome "unknown", described as "knee is a little swollen"; PAIN IN EXTREMITY (non-serious) with onset Apr2021, outcome "not recovered", described as "She began having a lot of intermittent leg pain"; ANAL INCONTINENCE (non-serious), URINARY INCONTINENCE (non-serious) all with onset Apr2021, outcome "unknown" and all described as "She is totally continent of her bowel and bladder/ One day she could not hold it, and went all over herself". Additional information: After receiving the covid vaccine, for the first two days, she felt fine. On the third day, she began feeling tired. Then on her right leg, she began having a lot of intermittent leg pain. Her leg pain would last for three days, break for three days and then come back. Her pain is above her right knee, her knee upward. Her knee is a little swollen. It is painful for her to walk up steps. Her knee is not hot to touch, but it is a little swollen. She has been having dark, thick, sludgy, pasty stools: Began on 26Apr2021, which was three days after receiving the first dose of the covid vaccine. She has been experiencing this every other few days. Whenever she has to use the bathroom, she has urgency. Whenever she's got to go, she's got to go. She is totally continent of her bowel and bladder. One day she could not hold it, and went all over herself. She had a sludgy, pasty bowel movement this morning. She began having a lot of intermittent leg pain: She is not sure what day it began. She knows for sure that it started within the first week after receiving the first dose of the covid vaccine. Her pain has been coming and going. Some days it is better, and other days not so much. She thinks her leg pain is getting better. But she does not know that tomorrow will hold. Adverse event did not require a visit to emergency room or physician office. No prior vaccinations within 4 weeks.   No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.