Dizziness/Lightheadedness; Nausea; Diarrhea; had a little sore arm post injection; feeling "woozy and uneasiness"; 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 66 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 06Mar2021 15:45 (Lot number: EL9266) at the age of 66 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "bone density" (unspecified if ongoing); "acid reflux" (unspecified if ongoing); "extra D" (unspecified if ongoing); "Blood pressure" (unspecified if ongoing); "Inflammation" (unspecified if ongoing). Concomitant medication(s) included: RALOXIFENE taken for bone density decreased (ongoing); OMEPRAZOLE taken for gastrooesophageal reflux disease (ongoing); LISINOPRIL taken for blood pressure measurement (ongoing); VITAMIN D3 taken for vitamin d decreased (ongoing); GARLIC [ALLIUM SATIVUM BULB] (ongoing); TURMERIC [CURCUMA LONGA RHIZOME] taken for inflammation (ongoing); CO Q 10 [UBIDECARENONE] taken for blood pressure measurement (ongoing); FAMOTIDINE taken for gastrooesophageal reflux disease (ongoing); CALCIUM taken for bone disorder (ongoing). Vaccination history included: Bnt162b2 (Dose 1, Lot number EL9265, Received at 11:50 AM in the left arm.), administration date: 13Feb2021, when the patient was 66 years old, for COVID-19 immunization, reaction(s): "sore arm". The following information was reported: PAIN IN EXTREMITY (non-serious) with onset 06Mar2021, outcome "recovered" (06Mar2021), described as "had a little sore arm post injection"; DIZZINESS (non-serious) with onset 09Mar2021, outcome "recovering", described as "Dizziness/Lightheadedness"; NAUSEA (non-serious) with onset 09Mar2021, outcome "recovered" (09Mar2021), described as "Nausea"; DIARRHOEA (non-serious) with onset 09Mar2021, outcome "recovered" (09Mar2021), described as "Diarrhea"; DIZZINESS (non-serious) with onset Mar2021, outcome "unknown", described as "feeling "woozy and uneasiness"". Additional information: Consumer stated she had the second dose of the Pfizer COVID 19 vaccine on Saturday afternoon. She mentioned that her arm was a little sore but then on Tuesday at around 14:30 she got struck by a wave of dizziness, nausea, lightheaded and had to lay down. She had continued to get waves of dizziness and lightheadedness through the day of reporting. The patient clarified that she received the first dose of the Pfizer COVID 19 vaccine 13Feb2021 at 11:50AM in the left arm. Her arm was sore for a couple of hours, but it was negligible. She then received the second dose on 6Mar2021 15:45PM in the left arm and her arm was little more sore but it only lasted a couple of hours as well. She woke up on Sunday feeling fine. Then on Tuesday she felt like she was attacked with the wave of dizziness. Added that she was sitting at the computer and got struck by a wave of dizziness, nausea, lightheaded and had to lay down. Added she had a little diarrhea. That evening she only had a light dinner and had been trying to hydrate. On day of reporting, she was little better but she still had spells where she feels the dizziness and lightheadedness briefly then it goes away. Concomitant medication included Multivitamin (Ongoing). While providing concomitant products she mentions her acid reflux medication was switched from the generic for Nexium to Omeprazole. Vaccination Facility was private vaccination site. The patient did not receive any additional vaccines administered on same date of the Pfizer suspect vaccine. It was unknown if patient had any prior vaccinations (within 4 weeks). Patient did not have any family medical history. No relevant test was performed.  No follow-up attempts are possible. No further information is expected.; Sender's Comments: Linked Report(s) : US-PFIZER INC-2021267869 similar report from same reporter;US-PFIZER INC-2021267869 Same reporter, patient, and drug; Diffrent dose and events