Completely blacked out; heart unstable; Light headedness; On Monday she did not feel herself. She felt bad,; tingling in hands, legs, and ankles; left hip was super sore; glands in neck were aching; Body aches; Chills; This is a spontaneous report from a contactable consumer (patient). A 72-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), dose 2 via an unspecified route of administration, administered in Arm Left on 13May2021 (Lot Number: EW0172) as 2nd dose, single for covid-19 immunisation. The patient medical history was not reported. The patient's concomitant medications were not reported. The patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE) lot number EW0162, left arm, on 13Apr2021 for Covid-19 immunization. The patient experienced completely blacked out on 18May2021 with outcome of unknown, body aches on 14May2021 with outcome of unknown, chills on 14May2021 with outcome of unknown, tingling in hands, legs, and ankles on 15May2021 with outcome of recovering, left hip was super sore on 15May2021 with outcome of recovering, glands in neck were aching on 15May2021 with outcome of unknown, heart unstable on 18May2021 with outcome of unknown, light headedness on 18May2021 with outcome of unknown, on Monday she did not feel herself. she felt bad, on 18May2021 with outcome of unknown. She received treatment for event heart unstable. Clinical course: Caller called after her first dose of the COVID vaccine because she had a question about a heart test she needed to have done and was it safe. She also had called about side effects she had from the first vaccine. She wanted to follow up with the second vaccine because she had some unusual problems with it. She got the vaccine. She did not have a prescribing doctor. She went to University . She asked questions from side effects after the first one. Caller doesn't have a reference number. She was reluctant to get the second knowing how sensitive she was to the first dose. She worked with her heart doctor after the symptoms she had after first dose which were heart related. They beefed up her heart medications for the second one. She is very sensitive to medications and vaccines in the past. She was in shock. With the second shot, everything was fine on the first day. That night she was fine as well. She got the shot Thursday 13 May 2021.On Friday she was pretty okay. She did have body aches and chills. On Saturday 15 May 2021, she had tingling in her hands, legs, and ankles. Her left hip was super sore enough that she couldn't stand on it. The glands in her neck were aching. They beefed up her heart medication, but her heart was beating like crazy. On day 3, Sunday, she was still having weird tingling and heart stayed stable. On Monday she did not feel herself. She felt bad but went to work. At that point she was not happy she took the COVID vaccine. Tuesday, 18 May 2021, her heart was really unstable. She was lightheaded. Her heart was beating back and forth extra hard. She had a hard time getting ready for work. She took readings on her apple watch. She went to leave for work but couldn't find her keys. She decided she would be fine. She was standing at her door trying to set the alarm when she woke up on the floor in the kitchen. She had blacked out in the kitchen. She came too on the floor, and her heart was going back and forth. Her heart doctor said don't go to the hospital. He thought it was a combination between the stress of the vaccine, and her extra heart medication. She is seeing her heart doctor today for follow up. This is the first time she has ever just completely blacked out. Her symptoms are ongoing, but much improved. She can finally stand now. She had body aches in specific places. There was nothing wrong in her left hip normally. The tingling in her hands has went away, but it is still in her knees and feet. It feels like she has neuropathy. It has improved but is bothersome. She is glad it is not seeming to be an ongoing thing. Second dose on 13May2021, She waited a week due to side effects from the first one because she was pretty sick. Most of the symptoms were on the left side of her body. She had numbness and tingling in her hands and feet. The passing out was not good. She was super disoriented . She didn't know if she hit her head or not. She is very sore. Her friend came over. Her shoulder and arm are bruised. The doctor said with COVID going on not to go to the ER. The doctor stayed in touch with her on Tuesday, and said he would see her Thursday morning, Today. She thinks she is okay. It was just a combination of everything. With the first vaccine she had arrhythmias and Afib for 3 days.  The doctor said he read that multiple patients from all the different COVID vaccine have experienced a flare up in their arrhythmias.