fever; doesn't feel good; He is feeling really ill; he is feeling annoyed; chills; diarrhea; decreased appetite; Dizziness; This is a spontaneous report from a contactable consumer (wife) reported for her husband (patient) via Medical Information Team. A 87-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Batch/Lot number: EN6201, Expiration date: not reported), via an unspecified route of administration in arm left on 24Feb2021 (at the age of 87-year-old) as a dose 2, single for COVID-19 immunization. The family medical history was reported as none. The patient's medical history included patient has a pacemaker, takes heart pills, takes three pills a day, flu, heart pills. The patient's concomitant medications were not reported. Historical vaccine included BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Batch/Lot number: FL9261, Expiration date: not reported), via an unspecified route of administration on 26Jan2021 (at the age of 87-year-old) as a dose 1, single for COVID-19 immunization and experienced dizzy and arm pain. Additional vaccines administered on same date of Pfizer suspect was reported as no. Prior vaccinations within 4 weeks was reported as none. The AEs following prior vaccinations were reported as none. Enquired, the caller was called on behalf of her husband (87-year-old male patient). The caller was 84-year-old female. Stated that, both received their first dose of the Pfizer Covid vaccine on 26Jan2021. Stated that, they both experienced dizziness after the first dose and arm pain. The second dose they received was on 24Feb2021 and her husband experienced chills for three days, diarrhea, decreased appetite on 25Feb2021. Stated that, these symptoms are continuing for him. Stated that, she wanted to know whether there was anything she should do. The caller stated that, she spoke with someone and reported her side effects and was transferred to medical information. The caller enquired, whether they could get the Covid virus from the vaccine. Stated that, the caller and her husband both had COVID vaccine on Wednesday. Stated that, they were a little dizzy after the COVID vaccine. The vaccination was given at about 09:15 - 09:30. Stated that, the patient got up after a couple minutes of resting and felt good. He was fine on Wednesday after the COVID vaccine. On Thursday, he was feeling different. He didn't felt good. He has chills for a couple days. Had a tad of a fever, but not much. Has just been laying ever since, had a lot of diarrhea. Stated that, he got up this morning and she thought he might feel better, but he laid back down. Stated that, he was feeling really ill. Clarified ill as he was feeling annoyed. The reporter seriousness for the events was reported as unspecified. Stated that, the patient felt a little dizzy on 24Feb2021. Laid down for 20 minutes. Then he went to play golf. Patient has a pacemaker and had it checked on Thursday morning, 25Feb2021. He didn't felt all that wonderful. Stated that, not sure when the chills started. Diarrhea started on Thursday, 25Feb2021. Stated that, he didn't ate anything particularly. The caller tried to keep fluids in the patient because she didn't want him getting dehydrated. The patient drank Gatorade and might have had a coca cola, but he didn't eat anything. Stated that, he would maybe ate a couple bites, but was not hungry and couldn't eat. Stated that, was unsure of spelling of Dr. (Name) name. The AEs did not require a visit and was sort of wanting to go. Stated that, Lot: FL9261# attempted to clarify. Stated that, she was trying to read the writing on the patient record card. The caller and her husband have confirmed the same lot numbers for both first and second COVID Vaccines. Stated that, the caller and her husband go to (State) for winter. Last year when they both got home, they were really sick. Both caller and her husband, had to go to the emergency room. Were sick for 3-4 weeks. Believed that, they had the COVID virus. Stated that, not sure whether it was COVID, but was told they both had the Flu. The caller mentioned this to the doctor and some say she and her husband might have had the COVID virus. Confirmed this was a year ago, prior to receiving the COVID vaccines. Stated that, the patient experienced chills, dizziness, diarrhea and tad bit of fever after second COVID Vaccine. Patient was told he may have the virus by a golfing friend. The caller thought patient gets emotional and was very upset when he was told that. Stated that, patient just kind of thought he probably was sick. Caller knows that, he doesn't feel good because it was not like the patient to just lay around. The outcome of the events was unknown.  No follow-up attempts are possible. No further information is expected.