felt like she was going to faint and had to lay down.; blood pressure and it was very high; Her Arm was sore for a few days/injection with the soreness; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non-HCP). The reporter is the patient.  An 88-year-old female patient received BNT162b2 (BNT162B2), on 13Sep2021 as dose 3 (booster), 0.3 ml single (Lot number: FF2588, Expiration Date: 31May2021) at the age of 89 years for covid-19 immunization. The patient's relevant medical history included: "High Blood Pressure" (unspecified if ongoing), notes: Comments: High Blood Pressure; "Acid Reflux" (unspecified if ongoing), notes: Comments: Acid Reflux; "Neuropathy in the feet" (ongoing), notes: Comments: Neuropathy in the feet; "Mold allergy" (unspecified if ongoing); "ragweed/Grass allergy" (unspecified if ongoing); "leaves allergy" (unspecified if ongoing). Concomitant medication(s) included: POTASSIUM. The patient was on her regular medications. she was on 8 prescriptions. She was on medications for High Blood Pressure, Acid Reflux, and she was on Potassium. The patient had no allergic reactions with the vaccines, but she was allergic to certain medications like Demerol and others that she cant think of. She was allergic to mold, ragweed, leaves, and grass, she was on medications for these allergies as well, but they were over the counter products. Past drug history included: Demerol, reaction(s): "allergic to certain medications like Demerol". Vaccination history included: BNT162b2 (Second Dose: Date 30Apr2021 Lot Unknown, Expiry 30Apr2021 at 0.3 ml), administration date: 30Apr2021, when the patient was 88-year-old, for Covid-19 Immunization, reaction(s): "weakness", "difficulty in being upright"; BNT162b2 (First Dose: Date 10Feb2021, Lot EL3248, Expiry Unknown.), administration date: 10Feb2021, when the patient was 88-year-old, for Covid-19 Immunization, reaction(s): "weakness"; BNT162b2 (First Dose: Date 10Feb2021, Lot EL3248, Expiry Unknown.), administration date: 10Feb2021, when the patient was 88-year-old, for COVID-19 immunization, reaction(s): "difficulty in being upright", "sick". The following information was reported: SYNCOPE (medically significant), outcome "unknown", described as "felt like she was going to faint and had to lay down."; HYPERTENSION (non-serious), outcome "unknown", described as "blood pressure and it was very high"; INJECTION SITE PAIN (non-serious), outcome "unknown", described as "Her Arm was sore for a few days/injection with the soreness". Clinical Course: after the first and second dose she had symptoms, but she really doesn't recall what they were exactly, she does know that she had weakness and had to lay down because just felt as if she could not get up, however it was not for very long. She does remember she had difficulty in being upright. After the First Booster, she also doesn't remember to well what the symptoms were, but she thinks it was the second day after that she had family over and suddenly, she felt like she was going to faint and had to lay down. She couldn't even finish preparing dinner because she couldn't be up. Her family took her blood pressure, and it was very high, her family wanted her to go to the ER, but she didn't, then the rest of evening she was not up, as far as symptoms she remembers what she experienced with the second booster in other words the 4th dose.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202200838766 similar report from same reporter;