Less energy and weakness; Chest pain on exertion; She was a lot of more tired/Fatigue; This is a spontaneous report from a contactable consumer or other non-health care professional (patient). A 68-years-old female patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Formulation: solution for injection, Batch/Lot Number: EN6203 and Expiration Date: not reported), via intramuscular route in Arm Left on 04Mar2021 11:15 (at the age of 68-year old) as DOSE 1, SINGLE for covid-19 immunisation. Medical history included blood pressure since 20years and is under control and stress. Family history included heart disease and her brother had heart disease (not really, does not have heart disease in the family, clarifies her brother has heart disease, parents and grandparents did not die of heart disease, no aunts or uncles that have heart disease). Concomitant medication(s) included hydrochlorothiazide, telmisartan (TELMISARTAN HCTZ, Formulation, Batch/Lot Number and Expiration Date: not reported) for blood pressure, start and stop date were not reported. The patient did not receive any other vaccines within four weeks prior to the COVID-19 vaccine. Adverse event following prior vaccinations was reported as none. History of all previous immunization with the Pfizer vaccine considered as suspect (or patient age at first and subsequent immunizations if dates of birth or immunizations are not available was reported as none aside from first dose. Additional vaccines administered on same date of the pfizer suspect was reported as none.The patient has received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Formulation: solution for injection, Batch/Lot Number: EP6955 and Expiration Date: not reported), via an unspecified route of administration on 25Mar2021 at 11:30 as DOSE 2, SINGLE for covid-19 immunisation. In Mar2021, the patient reporting on herself and her daughter. This was the report for caller herself. She experienced something that her doctor said she should have gone to emergency room for when it occurred. Two months after getting the first dose of the vaccine she continues to have less energy every day, and chest pain on exertion. She experienced less energy by the end of that week of the first dose, about 4 or 5 days after the first dose, unknown time onset, possibly started by 08Mar2021. It is so much worse and it was not horrible at first. In Mar2021,chest pain on exertion started a couple of weeks after the less energy started, chest pain started around 22 or 23Mar2021, during the day when trying to get things done. When she would stand up from a chair then it would hit. It was very minor at first and she had to stop and think if she was having chest pain, she was not really connecting the dots. She was a lot of more tired. Chest pain was so much worse and getting worse. When she saw cardiologist she could not say for sure that it was a result of the vaccine. She had been feeling really good at end of Feb 2021, despite the amount of stress she was going through, she had a lot of energy. Now she cannot get through making a meal and has to sit down. When the chest pain was occurring, she had to think about it, asking herself is this really chest pain and dismissed it, then as it reoccurred, it was clearly chest pain starting in the middle of her chest, going up her neck, into jaw and down her left arm . It did not last that long when it happened. She does not know what she was thinking that she did not seek help. It did not linger. It has gotten to the point that she has to ask her son to lift small boxes for her, everything she does, explains that if she does something for 15 minutes then she has to sit down for 15 minutes. Her family went somewhere that they had to walk a block and she was afraid that she would not make it due to fatigue and weakness. She suspected it was the vaccine but not sure till her daughter that is 43 years old told her yesterday that she was experiencing the exact same things as the caller. After comparing with her daughter what they both experienced and so much is the exact same symptoms, they came to the conclusion that it had to be the vaccine. Since the two of them (caller and her daughter) figured it out yesterday. She has people in her family that work in the medical field and have talked to physicians and cardiac electrophysiologist and were told that there were a number of cases with young people that experienced the same symptoms. The event chest pain on exertion resulted in physician office visit (Yes went to cardiologist).The patient underwent lab tests and procedures which included electrocardiogram in 2021 and was normal and the patient was scheduled for cardiac stress test. The outcome of the events less energy, tired/fatigue, weakness and chest pain on exertion was not recovered.  Follow-up attempts completed. No further information expected