cold sweat/sweating and freezing at the same time; lymph nodes under left arm swollen/lymph nodes under left armpit painful; pain at injection site; mild flu like symptoms; chills; this morning in the shower left arm pit felt like possible fluid; mild fever; little headache; achy body/pretty achy; little congested; pretty tired; This is a spontaneous report from a contactable consumer (patient herself). A 39-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Solution for injection, Batch/Lot Number: EN6204, Expiry Date: Unknown), dose 2 via an unspecified route of administration, administered in Arm Left on 06Mar2021 at 12:00 (at the age of 39-Year-old) as a DOSE 2, SINGLE for covid-19 immunisation (teacher, going back to 100% in class). The patient medical history included insomnia from an unknown date and unknown if ongoing. The patient's concomitant medications included, Insomnia medication (unspecified). The patient previously (within 4 weeks) received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Solution for injection, Batch/Lot Number: EN6201), dose 1 via an unspecified route of administration on 13Feb2021 (at the age of 39-Year-old) as a DOSE 1, SINGLE for covid-19 immunisation. Vaccine was not administered at Military Facility. History of all previous immunization with the Pfizer vaccine considered as suspect (or patient age at first and subsequent immunizations if dates of birth or immunizations are not available) included first dose of the same vaccine. No additional vaccines were administered on same date with the Pfizer vaccine considered as suspect. AE(s) following prior vaccinations A vaccine when she was traveling, she received around 5 vaccines about 7 years ago. She doesn't remember the vaccine, achy body and fever that was gone in 24 hours. Thinks it was for yellow fever but can't be certain. On 06Mar2021, the patient experienced little headache, achy body, little congested and was pretty tired. On 07Mar2021, the patient had mild fever and on 08Mar2021 she had cold sweat, lymph nodes under left arm swollen, lymph nodes under left armpit painful and sweating and freezing at the same time. On an unspecified date the patient experienced, pain at injection site, mild flu like symptoms, chills and this morning in the shower left arm pit felt like possible fluid. Reporter was talking about her second Covid vaccine dose. She took it on Saturday, 06Mar2021 on Saturday 06Mar2021 she had a little headache and then Sunday 07Mar2021, she was feeling flu symptoms. She then woke up around 03:00AM on 08Mar2021 in a cold sweat and pretty achy. She went to take a shower, and her left arm where she received the vaccine, underneath where her lymph nodes in her armpit are it is significantly swollen and painful. She asked, is this a side effect or does she need to go to the doctor. She felt sweating and freezing at the same time. Reporter clarified flu symptoms as felt achy, kind of pretty tired, under the weather and a little congested. A really achy body, mild fever, 100.1F with oral thermometer. Further patient clarified that, she had her second dose of the covid-19 vaccine on 06Mar2021, the next day experienced pain at injection site, mild flu like symptoms, chills, this morning in the shower left arm pit felt like possible fluid. No relevant tests were done. The patient underwent lab tests and procedures which included body temperature that was 100.1 fahrenheit on an unspecified date reported as, 100.1F with oral thermometer. Treatment of the event included, Advil Ibuprofen 200mg gel capsules, she took 2 gel capsules. Event did not require a visit to the Emergency Room or Physician Office. Outcome of all the events were unknown.  No follow-up attempts are possible. No further information is expected.