chills returned/chills, she did not feel too hot; joint and muscle pain; joint and muscle pain; she was not eating too much; harder to swallow/ could swallow, but had some discomfort while swallowing; unconsciously clearing her throat; This is a spontaneous report from a contactable consumer or other non-health care professional (patient). A 62-year-old female patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, solution for injection, Batch/Lot Number: EW0151, Expiry date: 31Jul2021) via intramuscular route of administration, administered in left arm on 13Apr2021 08:30 as DOSE 2, SINGLE for covid-19 immunization (at the age of 62-years-old). The patient previously received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, solution for injection, Batch/Lot Number: ER8732, Expiry date: 31Jul2021) via intramuscular route of administration, administered in left arm on 25Mar2021 as DOSE 1, SINGLE for covid-19 immunization and experienced goose bump, chills, injection site swelling and cold feeling. Family Medical History Relevant to AE(s) was not provided. None medical history (including any illness at time of vaccination) was reported. Prior vaccinations (within 4 weeks) were none. Relevant tests were none. AE following prior vaccinations was not available. The patient did not receive other concomitant medications. She said she had her first Pfizer BioNTech COVID-19 Vaccine at about 9:00 (on 25Mar2021), and that entire evening, and throughout the night, she had chills, and goosebumps. She said that evening, she was up the entire night with goose bumps, and feeling very cold. She said the cold feeling wouldn't go away. She said the chills and goosebumps, (and cold feeling) went away the next day. She said she also had left arm injection site swelling. She said her side effects were no big deal for the first time around with vaccine. On 13Apr2021, the patient experienced chills returned. She said along with the chills, she did not feel too hot. In Apr2021, the patient had joint and muscle pain, and felt like she had ran a marathon. She said since her second dose of vaccine, In Apr2021, the patient was not eating too much. She said all she had for today was a protein drink, and it was already the late afternoon. She said as of tomorrow, it would be a week since she had her second of vaccine. In Apr2021, the patient said at times it was harder to swallow. She clarified that she could swallow but had some discomfort while swallowing. She said she felt she swallowed with some constriction. She clarified she found herself unconsciously clearing her throat, it lasts for 26-36 hours that she had swallowing difficulty. Treatment reported was self massage with heat therapy, drank tons of water, and had a professional massage. No emergency room/physician office visit was reported. The outcome of the events she was not eating too much, harder to swallow/ could swallow, but had some discomfort while swallowing and unconsciously clearing her throat was not recovered and the events chills returned/chills, she did not feel too hot and joint and muscle pain were unknown. No follow-up attempts are needed. No further information is expected.