loss of appetite; tired; persistent fever; didn't feel good/ she felt crappy; during the overnight from Thursday (25Mar2021) to Friday (26Mar2021), she had sweated & she was drenched with sweat on Sunday night (28Mar2021); persistent headache; This is a spontaneous report from a contactable consumer (patient) reported for herself. A 67-years-old female patient received BNT162B2 (Pfizer-Biontech COVID-19 Vaccine, solution for injection, batch/lot number: EN6208, NDC number and expiry date: unknown), via an unknown route of administration in left arm on 25Mar2021 (Thursday) at approximately 10:30 (at the age of 67-years-old) as dose 2, single for COVID-19 immunization. She said neither dose had the NDC Number or Expiration Date listed. Vaccine was not administered at military facility. Patient's height about "5'2-1/2" to 5'3", as provided by caller. The patient's medical history and concomitant medication was not reported. Family medical history relevant to event was not provided. Patient's Medical History (including any illness at time of vaccination) was none. Prior Vaccinations within 4 weeks was none. No additional vaccines administered on same date of the Pfizer suspect. The patient received BNT162B2 (Pfizer-Biontech COVID-19 Vaccine, solution for injection, batch/lot number: EN6200), via an unknown route of administration in left arm on 01Mar2021 (Monday) (at the age of 67-years-old) as historical vaccine as dose 1, single for COVID-19 immunization and experienced slight left arm discomfort. The patient's past drug included about 3-4 weeks ago she went on Eliquis 2.5mg, twice a day and Coumadin before that. She said she didn't have the Eliquis 2.5mg with her to provide the NDC, Lot, and Expiration Date. No further details provided. She was fine before getting the second dose of the COVID vaccine. The patient said when she received her second COVID-19 Vaccine on Thursday (25Mar2021), she was fine. During the overnight from Thursday (25Mar2021) to Friday (26Mar2021), she had sweated, and she was drenched with sweat on Sunday night (28Mar2021). On 25Mar2021, she had a headache on Thursday night, and went to bed. She thought her headache may have been caused by her sinuses. She said her headache was off and on since 25Mar2021, her whole head hurt when she coughed. She said she had not coughed that often. She clarified that she still had a headache today (31Mar2021), and she did not usually get headaches. On 26Mar2021, when she woke up on Friday morning, she had a 99."something" temperature. She said she didn't feel good or she felt crappy on Friday (26Mar2021) (was reported as worsened). She has been running a persistent fever and had called her doctor and doctor referred her to the COVID vaccine site. She had a 101.8F persistent fever and has been taking Tylenol. She said she was probably tired from running a fever since Friday (26Mar2021) but didn't check her temperature until Sunday night because she wasn't feeling that terrible during the weekend. On 28Mar2021, she had no appetite and doesn't feel like eating, but knew she needed to eat, she was so tired, she didn't want to get out of bed. On 29Mar2021, she said she didn't feel good on Friday, but didn't bother to check her temperature again until Sunday night (28Mar2021). She said Sunday night her fever was 101.8 degrees. She said since then, her temperature had varied between 99 to 101.8. She said she had been taking Tylenol off and on. She said her last temperature was 101.2. She said her temperature was a little better with the Tylenol. She clarified she had her temperature checked regularly when she had PT (physical therapy), and her temperature had been fine before she got her second COVID-19 Vaccine. Reported her temperature had varied since she started having a fever. She said she called her family doctor on Monday (29Mar2021), and he told her if she wasn't feeling better by Tuesday (30Mar2021) or Wednesday (31Mar2021), to call the provider who had given her the COVID-19 Vaccine. She said she didn't know who that provider was that gave her the second COVID-19 Vaccine on 25Mar2021, so she called Pfizer. She said the only other telephone number she had was for the name of health department. She had been running a fever the whole time since she got her second COVID-19 Vaccine on 25Mar2021. There was a product complaint. Suspect product not related to PC. Event did not require a visit to emergency room and physician office. Reported her last diagnostic testing was about 2 months ago, when she had a UTI and was on antibiotics. She said at that time, she had a urinalysis done that showed a trace amount of blood in her urine. No further details provided. Reported she took Tylenol, clarified as Walmart brand Equate Extra Strength Acetaminophen 500mg (NDC Number: 49025-964-30, Lot Number: P122219, Expiration Date: Oct2023) to treat a fever. She stated she was unable to read the NDC Number even with her glasses on. She said she couldn't read the product labelling. She said the product label information was so tiny, she couldn't see it. She said she would need a magnifying glass to read it. The outcome of the event sweating was unknown, while the outcome of remaining events was not recovered.  No follow-up attempts are possible. No further information is expected.