was doing a few swooning side steps when getting up; low blood pressure, as low as 71/38 and 74/41, 2 weeks ago; has been a little more pale at times; heart rate was a little slower; This is a spontaneous report from a contactable consumer (patient's daughter).  A 86-years-old, female patient of an unspecified age received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE), dose 2 via an unspecified route of administration, administered in Arm Left on 18Feb2021 (Batch/Lot Number: EM9809) age at vaccination of 85-years-old, as single dose for covid-19 immunisation. Medical history included hypertension from an unknown date and unknown if ongoing, neuropathy peripheral from an unknown date and unknown if ongoing, chest pain from an unknown date and unknown if ongoing. The patient received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE), dose 1 via an unspecified route of administration, administered in Arm Left on 29Jan2021 (Batch/Lot Number: EL9261) age at vaccination of 85-years-old, as single dose, for covid-19 immunisation. Concomitant medications included spironolactone (SPIRONOLACTONE) taken for blood pressure measurement, diuretic therapy, start and stop date were not reported (stopped this 2 weeks ago when she went to the ER); isosorbide (ISOSORBIDE) taken for blood pressure measurement, cardiac disorder from an unspecified start date and ongoing; gabapentin (GABAPENTIN) taken for neuropathy peripheral from an unspecified start date and ongoing; pantoprazole (PANTOPRAZOLE) taken for gastrooesophageal reflux disease from an unspecified start date and ongoing; magnesium oxide (MAGNESIUM OXIDE) taken for an unspecified indication from an unspecified start date and ongoing; metoprolol tartrate (METOPROLOL TARTRATE) taken for blood pressure measurement from an unspecified start date and ongoing; losartan potassium (LOSARTAN POTASSIUM) taken for blood pressure measurement from an unspecified start date and ongoing; colecalciferol (VITAMIN D3) taken for an unspecified indication from an unspecified start date and ongoing; hydralazine (HYDRALAZINE) taken for an unspecified indication from an unspecified start date and ongoing; amlodipine (AMLODIPINE) taken for an unspecified indication from an unspecified start date and ongoing; warfarin (WARFARIN) taken for anticoagulant therapy, atrial fibrillation from an unspecified start date and ongoing; glyceryl trinitrate (NITROSTAT) taken for chest pain from an unspecified start date and ongoing; furosemide (FUROSEMIDE) taken for diuretic therapy, start and stop date were not reported. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. The patient experienced low blood pressure, face pale, swooning side steps on an unspecified date about 2 weeks ago. Since she took this vaccine, she has noticed that in the last number of weeks, her mother's blood pressure has been trending down. She had to send her to the ER by squad 2 weeks ago because her blood pressure was a little lower, but not the alarming 71/38 or 74/41 which appeared later; the doctor noted that at the time and that her heart rate was a little slower.  Then, when they did orthostatics, the lying down, sitting and standing, the squad did, it leveled out when she lied down flat and got her feet up. As soon as she was standing again, it went down to 88 over whatever, it was 50 or something. Today, on 13Sep2021, it is 100/51 and she has been having lower blood pressure.   She was not admitted to the hospital, it was just to the Emergency room and they discharged her and made changes to her medication. Even though they made changes, she continues to have low blood pressure. She will be calling the cardiology group again. It was a little higher today (13Sep2021) but she has been having some lower blood pressures. 100 over this and 90 over that. Those 2 are definitely not good but, not in the 70's. She has noticed that since this vaccine, she has noticed going forward, that her mom has been a little more pale at times. Had she been checking her blood pressure those times, she has to wonder what it was. When she clearly noted that her mother was doing a few swooning side steps when getting up, she started to pay more attention to her blood pressure. Treatment: No, they stopped a particular med called Spironolactone which is also a diuretic and for blood pressure. They stopped that and then she had Furosemide, which she was not taking that regularly with the other meds but they told her to only use it if her weight changed like 3 pounds. It was given because of fluid retention. She has not had to take much of that, maybe one a day every 4 or 5 days. The Spironolactone was stopped. The caller is concerned that it was not those medications because her mother is still having problems. The patient was not recovered from the events low blood pressure and pallor while outcome fo the other events was unknown.  Follow-up attempts are completed. No further information is expected.