involuntary muscle contractions in her diaphragm; chills; cold; severe body aches; Involuntary muscle cramping; chest pain; Feels bad; severe joint aches; tremor; nausea; severe body pain in her back and knees; severe body pain in her back and knees; Weakness; Headache; This is a spontaneous report from a contactable Other HCP reported for self. This 50-year-old female patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE) on 12Jan2021 07:00 on Deltoid Left at single dose (Lot # EK9231) for covid-19 immunisation. Concomitant medications were none. The patient previously received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE) on 22Dec2020 via Intramuscular at age of 50 years old on Deltoid, Left at single dose (Lot # EH9899) for covid-19 immunisation, experienced Tingling lips, Swollen lips, and the Benadryl took away the lip tingling and swelling, Tachypnea, Myalgia, Joint pain, severe headache, Weakness generalized, Nausea, she said she was really pale, so much so, that her husband was scared for her. She said the symptoms lasted for about 3 days, but the weakness lasted longer. Reported she took some Zofran disintegrating tablets for her nausea. Clarified she did have a PCR COVID-19 Virus test after she developed symptoms from receiving the first COVID-19 Vaccine dose. She said she had the PCR COVID-19 Virus test about 3 weeks ago and the test was negative. She said she thought she had the COVID-19 Virus after receiving the first COVID19 Vaccine dose because no one else she knew who had the COVID-19 Vaccine had any issues. Reported she received the second COVID-19 Vaccine dose on 12Jan2021 at 7:00AM in the left Deltoid. She said the adverse reaction she experienced after the second vaccine dose was slightly different from what she experienced with the first dose. She said about 10 hours after the COVID-19 Vaccine was administered, clarifying at around 17:00PM 12Jan2021, she started having severe body aches(disability), and involuntary muscle cramping (disability), like tetanus. She said even her diaphragm was cramping. She said she had chest pain on 12Jan2021(disability), tremors on 12Jan2021 (medically significant), and body aches, but doesn't think she had fever. She said the symptoms are still going on like with the first COVID-19 Vaccine dose, but she has more severe joint aching on 12Jan2021 (disability), weakness on 12Jan2021 (disability), and nausea on 12Jan2021 (medically significant). She said her knees feel like she was beaten severely. She said she aches so bad, it hurts having pants on. She said she does not have a headache or tremors now, but did have a headache on 12Jan2021 (medically significant) and tremors in the beginning. She said she feels the most pain in her back and knees. She said she feels really bad on 12Jan2021(disability). After the second dose on 12Jan2021, she reports severe body pain in her back and knees (disability). She reports almost feeling like she has tetanus- involuntary muscle contractions in her diaphragm on unknown date(disability), tremor, cold, chills, nausea, muscle cramps/chest pain. 'Felt like a heart attack. It was out of this world'. She still has nausea, severe pain all over my body, she can't be touched, and even wearing pants hurts. She said she is a healthy person with no chronic disease. She said she had nothing wrong with her prior to getting the COVID-19 Vaccine. Reported she hurts so bad, she can't even lift her arm. She completed a covid 19 PCR test after the first dose in Dec2020, which was negative. Treatment were received for the events severe body pain in her back and knees, involuntary muscle contractions in her diaphragm, tremor, nausea, muscle cramping, chest pain, Feels bad, more severe joint aching, severe body aches, Weakness, headache, chills, cold. Reported she has taken 1500mg of Motrin. Outcome of the severe body aches, Involuntary muscle cramping, Chest pain, severe joint aches, weakness, Nausea, Back pain, Knee pain, Feels bad was not recovered. Outcome of the event Tremor was recovered in Jan2021, Headache was recovered.; Sender's Comments: Based on temporal association, the causal relationship between BNT162B2 and the reported events cannot be excluded. The information available in this report is limited and does not allow a medically meaningful assessment. This case will be reassessed once additional information becomes available. The impact of this report on the benefit/risk profile of the Pfizer product is evaluated as part of Pfizer procedures for safety evaluation, including the review and analysis of aggregate data for adverse events. Any safety concern identified as part of this review, as well as any appropriate action in response, will be promptly notified to Regulatory Authorities, Ethics Committees, and Investigators, as appropriate.