my kidney function was down; Pericardial effusion in my heart; swelling; Shortness of breath; I got a headache; It started feeling  pain in my legs; looked at my legs and they were so swollen; had gained 17 pounds in 1 day from all of this/ I was weighing hundred thousand or something; my heart rate kept going up; My oxygen level is low; Chest pain; really dizzy in short of rest; really dizzy in short of rest; They said I'm allergic to this vaccine; 2nd dose on was in right gluteus medius. it was in my bottom. Intramuscular; This is a spontaneous report from a contactable consumer (patient). A 38-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Batch/Lot Number: FC3183), via intramuscular route, administered in gluteus medius right on 01Sep2021 (at the age of 38-year-old) as dose 2, 0.3 ml single for COVID-19 immunisation. Medical history included pulmonary embolism, hypokalaemia, Hashimoto's disease, blood clots. Concomitant medications included levothyroxine taken for Hashimoto's disease; apixaban (ELIQUIS) taken for blood clots and vitamins for potassium and phosphorous, but she took prenatal vitamins because of it, it had more of everything in it. The patient previously received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Batch/Lot Number: EW0167), via intramuscular route, administered in right thigh on 10Aug2021 (at the age of 38-year-old) as dose 1, 0.3 ml single for COVID-19 immunisation and patient got sick, felt like sickly and terrible and was shaking and had a slight fever. The patient did not take any other vaccine prior to 4 weeks of COVID vaccine. On an unknown date in Sep2021, after receiving the second dose, about an hour of half later, 2 hours, maximum after 2 hours, It started feeling pain in her legs, patient looked down and looked at her legs and they were so swollen and also the patient had swelling, gained 17 pounds in 1 day, had pericardial effusion in her heart, shortness of breath, the patient had headache, patient was weighing hundred thousand or something. It was reported that the very next day the patient went to the employee house and they send her to the ER (emergency room), the patient spent total 11 days in the hospital. The patient was admitted right away. First, the patient was there for 3 days. Then she had to go back, because her heart rate kept going up in Sep2021, It was said that the patient was allergic to the vaccine. It was reported that, first time, it was 3 days, 2nd time was 4 days, 3rd time, the patient was sent by the ambulance, couldn't breathe, it was just getting worst and worst, oxygen level was low, heartbeat level was high, thus the patient was admitted again. The patient mentioned in Sep2021, that she felt really dizzy and was in short of rest. The patient underwent lab tests and procedures which included blood test with unknown result in Sep2021, heart rate: high in Sep2021, mean cell volume (CVC): unknown results in Sep2021, oxygen saturation: low in Sep2021, renal function test: kidney function was down in Sep2021, weight: gained 17 pounds in 1 day in Sep2021. As the corrective measure Colchicine was taken by the patient for pericardial effusion, and for other events steroids were given, for swelling furosemide (LASIX), and another unspecified medication, the patient was put on nitrates in hospital for chest pain and heart rate. In hospital, magnesium, iron, vitamin D, calcium was given to patient as corrective treatment. The patient was prescribed with metoprolol succinate to lower the heart rate, but the patient did not take it up as it was costed her too much. The outcome was reported as not recovered for "really dizzy in short of rest" and unknown for rest of the events.  No follow-up attempts are needed; no further information is expected.