felt really sick/Sick; like she had the flu; very very dizzy; brain fog/not feeling great; kind of wanting to eat but do not want to eat; feeling crummy; Stomach ache; wants to throw up but she does not want to throw; Groggy; was tired; This is a spontaneous report received from a contactable reporter (Consumer). The reporter is the patient.  A 71 year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), administered in arm right, administration date 07Apr2021 16:00 (Lot number: EP6959) at the age of 71 years as dose 2, single for covid-19 immunization. Relevant medical history included: "Blood pressure" (ongoing); "Thyroid" (ongoing). Concomitant medications included: LEVOTHYROXINE taken for thyroiditis (ongoing); AMLODIPINE taken for blood pressure management (ongoing); NAPROXEN taken for blood pressure management (ongoing). Vaccination history included: BNT162B2 (Dose 1, Batch/Lot number: unknown), administration date: 09Mar2021, when the patient was 71 years old, for covid-19 immunisation. The following information was reported: ILLNESS (non-serious) with onset 11Apr2021, outcome "unknown", described as "felt really sick/Sick"; INFLUENZA LIKE ILLNESS (non-serious) with onset 11Apr2021, outcome "unknown", described as "like she had the flu"; DIZZINESS (non-serious) with onset 11Apr2021, outcome "recovering", described as "very very dizzy"; FEELING ABNORMAL (non-serious) with onset 11Apr2021, outcome "recovering", described as "brain fog/not feeling great"; DECREASED APPETITE (non-serious) with onset 11Apr2021, outcome "recovered" (19Apr2021), described as "kind of wanting to eat but do not want to eat"; MALAISE (non-serious) with onset 11Apr2021, outcome "recovering", described as "feeling crummy"; ABDOMINAL PAIN UPPER (non-serious) with onset 11Apr2021, outcome "recovered" (14Apr2021), described as "Stomach ache"; NAUSEA (non-serious) with onset 11Apr2021, outcome "unknown", described as "wants to throw up but she does not want to throw"; SOMNOLENCE (non-serious) with onset 11Apr2021, outcome "recovering", described as "Groggy"; FATIGUE (non-serious) with onset 11Apr2021, outcome "unknown", described as "was tired". Therapeutic measures were not taken as a result of illness, influenza like illness, dizziness, feeling abnormal, decreased appetite, malaise, abdominal pain upper, nausea, somnolence and fatigue.  Additional information: Caller stated that she got her second injection 07Apr2021 and did great with no problem, that was on a Wednesday. On Sunday, she felt really sick like she had the flu and she thought it was from the shot so no problem, but she was still not feeling great. Caller clarified the symptoms she has experienced was feeling very very dizzy, brain fog, kind of wanting to eat but do not want to and feeling crummy. In the beginning, she had a stomachache but that went away after 3 days. Caller stated the main thing was her feeling dizzy. It was like she wanted to throw up, but she does not want to. She felt groggy since she had a setback yesterday morning, she stayed in bed all morning and was much better today. Usually, she was a go-go person, but this made her stay in bed since she was tired. Caller stated she was not sure if she has recovered completely from these symptoms. Caller received the second dose of the vaccine in her right arm as an injection. She cannot make out the last number for the lot number, but it might be EP6959. Caller stated that she was taking a thyroid pill and two pills for her blood pressure. The patient had not received any other vaccine within 4 weeks.  No follow-up attempts are possible. No further information is expected.