she and they thought she was having a heart attack; she must have passed out because she didn't remember all the tests; she got a sharp pain underneath her left rib cage/pain was number10/still had pain off and on, periodically; broke out in sweat, real bad, number 10, she broke out in a clammy sweat; hard to breath, she got a sharp pain underneath her left rib cage; the muscle that goes around her heart, it was having like a charley horse; heart rate, She says 102, 103, it went up to 200 in the ambulance.; chest pain; Nausea; hard to breath, she got a sharp pain underneath her left rib cage; This is a spontaneous report from a contactable consumer (patient). A 77-year-old female patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE; lot number EL3246), via an unspecified route of administration, administered in left arm on 04Feb2021 09:00 as single dose for COVID-19 immunization. Medical history included ongoing atrial fibrillation for a about 6 years , ongoing anemic for the last 20 years, glaucoma from 1998, had both eyes operated on and in 2016 she was operated on again, cataract had this 4 years ago in she says, in 1918, 1919, she clarifies 2018, Cardiac pacemaker insertion which pacemaker that controls her heart so the pulse does not drop below 65. She says that pacemaker was implanted, she thinks, 2014 maybe, blood pressure, arthritis throughout her body and had 30 operations, body doesn't absorb what she eats, anxiety, asthma, muscle spasms; she reported she has had a lot of surgeries, both of her ankles have had triple fusions, these were in 2005, 2010, 2014, 2018, both her ankles were fused, she had 5 surgeries on her feet; she has had both of her knees replaced because of arthritis, 2012 and 2015 she believes, had numerous other surgeries and she doesn't want to go through all of them, a right shoulder reverse rotator cuff repair, she had a rotator cuff put in, she doesn't have a rotator cuff, this happened in 2019, her left shoulder, because of an automobile accident, rotator cuff was so damaged that they couldn't repair it, she has minimum use of her left arm and has had operations on her left shoulder in 2005; had a pacemaker put in about 6 years ago, the next morning they kept her overnight, they came in, they took an Xray, she had to go back 2 days later because the lead had come of the heart, they had to go back in an reattach the lead to the heart; 2 years ago her pacemaker was going all over her chest, the doctor did not believe her and it landed under her armpit, it was the size of an orange, the doctor thought it was a lump, she went to the hospital, her pacemaker started falling apart, they took it out and put a new one in, it was about 4 years ago; a lump in her breast, she has been put under 30 times, they were all necessary, nothing for glamorizing; had surgeries in her left arm and some fingers than were numb. There was no prior vaccinations within 4 weeks, no events prior vaccinations and no family history. Ongoing concomitant medication included baclofen taken for muscle spasms for about 2 years, calcium for arthritis and her bones degenerate for 30 years, ergocalciferol (CALCIFEROL VIT D) taken for gets anemic real easy for 20 years, duloxetine taken for anxiety, taking this about 3 years ago; ferrous sulfate taken for anemic real easy for about 20 years; folic acid taken to rebuild cells taking this she thinks in 2015, furosemide taken for a diuretic to get rid of fluid for 2 years, metoprolol tartrate taken for atrial fibrillation, and blood pressure, taking this since she had her pacemaker put in; montelukast for asthma for 20 years; hydrocodone bitartrate, paracetamol (NORCO) taken for arthritis for 20 years, and warfarin taken for blood thinner/thin the blood out so she doesn't get blood clots; and adults vitamins for bone supplement and metabolism for 20 years as her body doesn't absorb what she eats. She says she takes a lot of medications and when she does blood bloodwork she was low so they make her take them. The patient previously took rivaroxaban (XARELTO). On 06Feb2021, the patient experienced she thought she was having a heart attack. The patient reported that she had to call an ambulance at 11:30 at night, she thought she had a massive heart attack. She had chest pain, nausea, it was hard to breath, she got a sharp pain underneath her left rib cage. She stated that when the ambulance got here they thought she was having a heart attack, they did nitroglycerin, when they got to the house, when in the ambulance on the way to the hospital they did another pill of nitroglycerin when they got to the hospital. The pain was a number 10. She stated she broke out in sweat, once they got her all hooked up they got to the hospital 6 miles away to the hospital. She was there for 2 full days, they did Xrays, dye in her, checked her hears, and did bloodwork. When she had chest pain, she reported they gave the morphine, it lasted about 6 hours; she still had problems breathing, they took her, she must have passed out because she didn't remember all the tests, she was in and out of it, the severe pain stopped after 6 hours, still had pain off and on, periodically. When she got pain in the ambulance then the nausea went away. After the hospital nitro and another shot for the pain, the nausea stopped. After the hospital after this they gave morphine and the pain subsided a little but didn't totally go away until 6 o'clock in the evening, she still had problems breathing because every time she breathed she got pain under her left rib cage. She says the sweat was at home, real bad, number 10, she broke out in a clammy sweat, on the 6th when she was having pain. She says that after the hospital, a couple days after that, she saw her cardiologists, he told her what happened, it was related to vaccine, it was the muscle that goes around her heart, it was having like a charley horse, he says it felt like you're having  a heart attack, her tests said her heart was good. She talks about her blood pressure and heart rate, and says 102, 103, it went up to 200 in the ambulance. She says they thought it was a heart attack, her blood pressure was usually low blood pressure and all the symptoms she was having was because of her muscle having a charley horse that felt like it was coming from the heart, if they had contacted him, he said she would have just needed a massive amount of anti-inflammatory and it would have stopped the pain. The events required an emergency room visit. She wanted to know if anybody else has been hospitalized for massive heart attacks and says that's what she was having. The patient had her second shot on 22Feb2021. Outcome of event nausea was recovered on an unspecified date; and outcome of the rest of events was unknown.