A-Fib; The Pfizer covid vaccine made her heart worse; anxiety; injection site was swollen, red, and warm to the touch; injection site was swollen, red, and warm to the touch; injection site was swollen, red, and warm to the touch/her arm at the injection site was swollen, red, hurting and tender to touch; injection site was swollen, red, and warm to the touch/her arm at the injection site was swollen, red, hurting and tender to touch; heart rate also went up because she is scheduled for chemo, radiation and has an a-flutter/Fast heart beat; heart rate also went up because she is scheduled for chemo, radiation and has an a-flutter; Extreme tiredness; Bad headache; Fever of 99.4, 99.7, and 100.8; Chills; feeling yucky; Body aches; Feeling unwell; sick all day the day after but was fine by Sunday; This is a spontaneous report from a contactable consumer (patient). A 58-year-old female patient received the second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Batch/Lot Number: ER8729), via an unspecified route of administration, administered in arm left on 09Apr2021 at 11:30 (at the age of 58-years-old) as a single dose for COVID-19 immunisation. Medical history included neuropathy on the bottom of her feet, cancer and cannot sleep from an unknown date and unknown if ongoing. Concomitant medication included metoprolol succinate at 275 mg, daily (125mg of metoprolol succinate in the morning and 150mg of metoprolol succinate in the evening) taken for an unspecified indication, start and stop date were not reported. The patient previously received the first dose of BNT162B2 on 19Mar2021 at 10:00AM (at the age of 58-years-old) in left upper arm for COVID-19 immunisation. The patient received her 2nd dose of the Pfizer COVID Vaccine on 09Apr2021. She was sick all day the day after (10Apr2021) but was fine by Sunday. On Monday, 12Apr2021, she mentioned that she underwent radiation therapy, then noticed that her injection site was swollen, red, and warm to the touch on 13Apr2021. On 10Aapr2021, her heart rate also went up because she is scheduled for chemo, radiation and has an a-flutter. She mentioned that the COVID shot made it go up. She is asking how long these side effects should last and for what to do. She mentioned that the nurse at her doctor's office told her to contact Pfizer on what to do. She is a high-risk cancer patient. She received her second dose of the COVID vaccine on 09Apr2021. The next day, she experienced tiredness, a headache, chills, and body aches. She also had a fever of 99.4, 99.7, and 100.8. She was feeling unwell. Then she got a fast heartbeat. She has been having that problem. She has A-Fib and A-Flutter. She has been doctoring every week about her A-Fib and A-Flutter. Then she was fine. On Monday, she had radiation. After radiation, on Tuesday, 13Apr2021, her arm at the injection site was swollen, red and hurting. Then her heartbeat started back beating fast. She has had a headache on and off. She had a headache on Monday, Tuesday and Wednesday. She does not look at her weight. She has gained so much weight since cancer. She retains liquids because of her cancer. She is probably about 230 pounds. She has been tired because of her cancer. But this was different, this was extreme tiredness. Began on Saturday, 10Apr2021 whenever she woke up. With her cancer, she cannot sleep. After the second dose of the covid vaccine, she was so tired, she actually rested well. She was feeling yucky, with chills, a headache and a fever. She is grateful that she was able to get some sleep. It was completely resolved on Sunday morning, 11Apr2021 whenever she woke up. Bad headache began on Saturday, 10Apr2021 whenever she woke up. Sleeping relieved her headache. She took some Tylenol even though she is not supposed to take Tylenol because of her chemotherapy. Tylenol could affect her liver because of the chemotherapy. She took the Tylenol for her fever and to help her headache. Her headache is on and off, but it is a lot better since her first headache. Her headache was the worst on the first day. She thought her symptoms were clear until her arm at the injection site was swollen, red and hurting. It was also hot to touch. Chills, body aches and fever of 99.4, 99.7, and 100.8, feeling unwell began on Saturday, 10Apr2021 whenever she woke up. Completely resolved on Sunday morning, 11Apr2021 whenever she woke up. Her heart started racing on Saturday, 10Apr2021. Then it resolved on Sunday, 11Apr2021. Then her fast heartbeat came back whenever her arm at the injection site started to get swollen, red and hurting. She thinks that her fast heartbeat could be anxiety too. She has anxiety. She takes heart medications that are supposed to slow her heart down. The medications are not working. Chemotherapy makes her heart worse. She called her doctor about her heart beating fast. She has not heard back from her doctor yet. Usually her doctor will up her mediations. Now tomorrow, she will be filling her body with poison. Chemotherapy makes her heart worse. Chemotherapy name, lot number, NDC and expiration date: Not provided. The Pfizer covid vaccine made her heart worse. She is supposed to get chemotherapy tomorrow. She does not know what will happen tomorrow. She thinks that her doctor is going to have to up her medications. She has been seeing her heart doctor every week. Because of radiation, she has not seen her as much. She is going to see her heart doctor on Tuesday. Her heart doctor has been doctoring her for forever, and she sees her every week since she was diagnosed with cancer. She prefers for Pfizer to contact her heart doctor if there are any follow up questions. She had to have surgery, and after that she went into A-Flutter. Her heart doctor has been on it since. Clarified that her heart medications normally do work. She thinks that the COVID vaccine counteracted her heart medications. Normally her heart rate is under 100. After the COVID vaccine, at 7:00PM, her pulse was 104. On Saturday, at 4:30PM, her heart rate was 111. At 8:00PM, it was 109. On Sunday, it got better. At 7:30AM, it was 96. At 6:00PM, it was 90. On Tuesday, whenever the injection site turned red, was hurting and swollen, her heart rate was 104. Currently her heart rate is 94. She has A-Fib and A-Flutter. She has been doctoring that every week about that. After that she was fine. On Monday, 11Apr2021, she had radiation. After radiation, on Tuesday, 13Apr2021, her arm at the injection site was swollen, red, hurting and tender to touch. Her heart started beating fast again. The redness is the whole width of her arm. She is asking how long she can expect this redness to last. She does not know if radiation triggered this. It happened right after radiation that she started on Monday. Her daughter told her that this is normal, and a lot of people have this happen. The day before the second dose of the COVID vaccine, she had internal radiation. That was her third radiation treatment. She told her oncology doctor about the COVID vaccine and her doctor talked to her about it. Her doctor told her to go on and get the COVID vaccine, and that people like her needed the vaccine. She did not have radiation with first dose of the COVID vaccine. Therapeutic measures were taken as a result of bad headache and fever of 99.4, 99.7, and 100.8. The outcome of the events sickness, fever, chills, feeling abnormal, body aches and feeling unwell was recovered on 11Apr2021, headache was recovering, while of the rest was unknown.