Had two quick stabbing heart pains; she think she was losing her mind; Arm was mildly sore; Visual instability; The sense of the caller''s body place in space was out of wack/brain was not doing right; Increasing cognitive problems and communicating difficulties; Sort of dizziness; Communicating difficulties; she was so afraid; head was spinning; This is a spontaneous report from a contactable consumer (patient herself). A 65-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, formulation: Solution for injection, Lot number: FC3183, Expiry Date: Unknown) via an unspecified route administered in left arm on 17Sep2021 (at the age of 65-year-old) as Dose 2, Single for COVID-19 immunization. The patient's medical history included weak heart (heart does not beat in a certain rhythm which was exacerbated with stress, got her diagnosis they said for her to not take any vaccines), Covid-19 (Had covid twice prior to getting the vaccine) both from an unspecified date and late stage lyme (in 1995) unknown if ongoing all. The patient's concomitant medications included ascorbic acid (VITAMIN C) 500 mg twice a day, astragalus mongholicus, atractylodes macrocephala, codonopsis pilosula, eleutherococcus senticosus, ganoderma lucidum, glycyrrhiza uralensis, ligustrum lucidum, schisandra chinensis (ASTRAGALUS) Root Extract 500 mg twice a day, glucose tolerant factor 500 mg twice a day and amlodipine besylate 2.5 mg twice daily (one in the morning and one in the evening) indicated "for her heart" all. Historical vaccine included BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, formulation: Solution for injection, Lot number: FC3183, Expiry Date: Unknown) via an unspecified route of administration on 27Aug2021(at the age of 65-year-old) as Dose 1, Single for COVID-19 immunization and patient experienced weird dizziness (she had this dizziness before when she got steroidal treatments but not this bad), the arm that was vaccinated was tender, left arm felt like it was getting heavy and was hurting very sore and weak head was spinning, it felt like the reporter was hit in the head with a hammer. The patient stated that she took Pfizer covid vaccine because she was scared to death of delta. Patient was advised by two doctors and a specialist not to take the covid vaccines. It all got worse with the second dose. On 22Sep2021 (within the first week after the second shot), the patient had experienced two quick stabbing heart pains, heart problems, arm was mildly sore, and she took Aspirin which helped. Reporter doesn't know if this was from the shot or not, but she hasn't had this in a while. She was on medicine for her heart and was feeling better. Around 24Sep2021, the stabbing pains in the reporter heart happened again. On an unspecified date in Sep2021, she had a sort of dizziness and visual instability- like if she turned her head to the left or right, she would felt like her head was spinning, the sense of the reporter body place in space was out of whack, Patient arms were not going weak and she did not felt like she was going to fall, had increasing cognitive problems and communicating difficulties that happened 2-3 weeks after the shot. On 29Sep201 (13 days after the second dose), she tried to do simple business on the phone, her brain was not doing right. The lady said it was her AC not her heater that needed to be tuned up for the winter. Patient couldn't get it through, she was usually much straighter than this in her communication. Reporter said she thought she was losing her mind; she was so afraid. This was not like the reporter to get that loose with her thoughts. Now the reporter was not as bad as she was, the communication thing lasted about 2-3 weeks because it was after the phone call on the 13th day. It tapered off so it was not like the reporter could give a specific stop date. Reporter stated this may have started at the same time that she had the visual instability. The heart stabbing was just the two times and then it was done, it was improved. The person who gave vaccine advised her that, she needs a doctors note before she got the vaccine. Therapeutic measures were taken as a result of the event arm was mildly sore which included Aspirin. The outcome of the event communicating difficulties was recovered on an unknown date in 2021, events stabbing heart pains, arm was mildly sore, dizziness was recovering, the events head was spinning, afraid was unknown and outcome of other events were not recovered.  No follow-up attempts are possible. No further information is expected.